Foam Hair Colorant Composition

ABSTRACT

A hair colorant composition being essentially free of surfactant and having a specific perfume system for the hair colorant composition, where the hair colorant composition is capable of forming a foamed hair colorant composition.

CROSS REFERENCE TO RELATED APPLICATION

This application claims the benefit of U.S. Provisional Application Ser.No. 61/287,931 filed Dec. 18, 2009.

FIELD OF THE INVENTION

The present invention relates to a hair colorant composition essentiallyfree of surfactant for use in combination with a foaming dispenser witha specific perfume system.

BACKGROUND OF THE INVENTION

An outstanding issue with respect to hair colorants includes ease ofapplication and concerns over messy application resulting in skinstaining and uneven hair color results. Recent trends indicate thatconsumers find handling of foamed products preferable to gels, creams orliquids.

Foamed products are known to be generated in one of two ways. The firstbeing the use of a compressed gas (aerosols) which are admixed with acomposition that is evacuated from a container by the consumer. Acommercial example of this would be Kanebo Cosmetics's Simpro haircolorant. GB2188257A discusses a device for dispensing a two-componentproduct, such as shampoos or dyes in a pressurized container anddispensed in the form of foam.

Outstanding issues with pressurized systems such as these examples arethat oxidative hair colorants are radically initiated reactions thatrequire sequestration from oxygen or segregation of the developer fromthe tint components (couplers, primaries, etc.) until use of the haircolorant is desired by the consumer. The sequestering packaging resultsin expensive, yet ineffective packaging for dispensing the hair colorantdue the lack of control of the ratio of tint components to developercomponents coming out of the pressurized system or ineffective insegregating the hair colorant from oxygen.

The second way to generate a foam product is via a non-pressurizeddispenser in the form of a pump foamer or squeeze foamer. A commercialexample of a pump foamer would be Youngrace Bubble Hair Color product. Acommercial example of a squeeze foamer would be Kao's Prettia Soft FoamColor, Liese Bubble Hair Color or Blaune Foam Color products. See alsoUS 2004/0213752A1. Further, U.S. Pat. No. 7,040,507 discusses afoam-type hair dye apparatus for converting a liquid hair dye into foam.

Pump foamers can be difficult to utilize with oxidative hair colorantcomposition due to the use of metal parts, such as springs, that areexposed to the oxidative hair colorant composition. Due to the high pHof the dye composition sub-component and presence of an oxidizing agent,the composition reacts with metal parts of the pump mechanism, such assprings, causing damage to the pump foamer and to the composition whenoxidized metal ions contaminate the composition.

Therefore, it is a desire to provide an hair colorant product having aliquid hair colorant composition in a manually-actuable, non-aerosoldispenser. Further, there exists a further desire to minimize damage tohair when using hair coloring products while producing good end colorresults.

It has been found that the reduction or elimination of surfactants fromthe hair coloring composition can address the outstanding needs of suchproducts and provide further desired benefits. However, a reduction ofsurfactants from the hair colorant composition cause most perfumes to beinsoluble or unstable in the hair colorant compositions due to thehydrophobic nature of perfumes (being essentially oils). Additionally,perfumes may cause premature foam collapse than desired, leaving aliquid rather than a foam in a user's hand. It has been found thatcareful selection of perfume components via a ClogP criteria results inperfumes that are soluble and stable in the hair colorant compositionwhich is essentially free of surfactants and do not cause foaminstability or premature collapse of the foam.

SUMMARY OF THE INVENTION

According to one aspect of the invention there is provided a haircolorant product comprising an hair colorant composition contained in amanually-actuable, non-aerosol dispenser, the composition comprising ahair dye, an alkalizing agent, an oxidizing agent, a foam stabilizingagent which is a member selected from the group consisting of polymericemulsifiers and polymeric foam stabilizers and mixtures thereof and aperfume comprising an Average ClogP less than 1.5, wherein the haircolorant composition is substantially free of surfactant and whendispensed from the manually-actuable, non-aerosol dispenser result is afoam comprising a specific foam volume from about 6 to about 14 ml/g,preferably from about 7.5 ml/g to about 12 ml/g, more preferably fromabout 8 to about 10.5 ml/g.

According to a further aspect of the present application is a haircolorant composition comprising: (i) a hair dye, (ii) an alkalizingagent, (iii) an oxidizing agent, (iv) a foam stabilizing agent which isa member selected from the group consisting of polymeric emulsifiers andpolymeric foam stabilizers and mixtures thereof and (v) a perfumecomprising a blend of perfume raw materials in which up to 30% by weightof the perfume consists essentially of perfume raw materials having aClogP in the range 1.5 to 2.5 and the balance of the perfume consistsessentially of perfume raw materials having a ClogP of less than 1.5,wherein the hair colorant composition is substantially free ofsurfactant.

According to a further aspect of the invention there is provided a kitcomprising containing components to form an hair colorant compositionthe kit comprising: a tint composition component comprising a hair dye,an alkalizing agent and a perfume; wherein the perfume comprises anAverage ClogP less than 1.5; a developer composition componentcomprising an oxidizing agent and a foam stabilizing agent which is amember selected from the group consisting of polymeric emulsifiers andpolymeric foam stabilizers and mixtures thereof; a manually-actuable,non-aerosol dispenser, the dispenser capable of dispending the mixtureof the tint composition component and developer composition component ina foam comprising a specific foam volume from about 6 to about 14 ml/g,preferably from about 7.5 ml/g to about 12 ml/g, more preferably fromabout 8 to about 10.5 ml/g; wherein the tint composition component andthe developer composition component are essentially free of surfactant.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an embodiment of the manually-actuable, non-aerosoldispenser cross sectional view;

FIG. 1A is a magnified view, taken along lines 1A-1A of FIG. 1, of amesh disposed near a diffuser opening or mixing chamber egress orificeof the dispenser;

FIG. 1B is a magnified view, taken along lines 1B-1B of FIG. 1, of amesh, disposed near a dispenser head orifice;

FIG. 2 is an exploded view of a dispenser head of the dispenser of FIG.1;

FIG. 3 is a cross-sectional view of an alternate embodiment of themanually-actuable, non-aerosol dispenser of the present disclosure;

FIG. 3A is a magnified view, taken along lines 3A-3A of FIG. 3, of amesh disposed near a diffuser opening or mixing chamber egress orificeof the dispenser;

FIG. 3B is a magnified view, taken along lines 3B-3B of FIG. 3, of amesh, disposed near a dispenser head orifice; and

FIG. 4 is an exploded view of a dispenser head of the dispenser of FIG.3.

DETAILED DESCRIPTION OF THE INVENTION

A reduction of surfactants in hair colorant compositions used to producea foamed product result in most perfumes being insoluble or unstable inthe hair colorant compositions due to the hydrophobic nature of perfumes(being essentially oils). Additionally, perfumes having a ClogP higherthan desired may cause inhibit or “kill” a foam, leaving a liquid ratherthan foam in a user's hand. It has been found that careful selection ofperfume components via a ClogP criteria results in perfumes that aresoluble and stable in the hair colorant composition which is essentiallyfree of surfactants and do not cause foam instability or prematurecollapse of the foam.

Surfactants are widely used in hair colorant compositions ashomogenizing agents and, in the case of foam hair colorants, surfactantsare used as foam stabilizing agents. When surfactants are used in foamhair colorants, they may be present in an amount of from 0.1% (1000 ppm)to 20% (200000 ppm) by weight of the composition to be dispensed,typically exemplified in amounts of at least 1.9% (19000 ppm) by weight.

It has been found that when surfactants are present in hair colorantcompositions and the compositions are subject to agitation (e.g.vigorous shaking), foam forms in the reservoir of a dispenser havinghead space. The formation of foam in the reservoir head space leads todispensing failure.

The hair colorant compositions of the invention do not require thepresence of a surfactant to create and maintain foam of acceptablequality. While small amounts of surfactant may be present as processaids, e.g. to assist homogenization of some components, or a functionother than foaming, it is preferred that the compositions aresubstantially free of surfactant.

As used herein “substantially free of surfactant” means that no anionic,cationic, zwitterionic or amphoteric surfactant is purposefully added tothe composition. In one embodiment, the composition is substantiallyfree of anionic, cationic, zwitterionic, amphoteric and nonionicsurfactants. Surfactants may be present in trace amounts due to presencein components. By “trace amounts” it is intended that the levels ofsurfactant are less than 500 ppm, such as 0 ppm to 500 ppm. Preferablyless than 200 ppm, such as between 0 ppm and 200 ppm. Preferably thelevels of surfactants are less than 100 ppm, such as between 0 ppm and100 ppm. In general the compositions will contain less than 0.05% byweight, preferably less than 0.02% by weight, more preferably less than0.01% by weight based on the hair colorant composition to be dispensed.

With the reduction or elimination of surfactants from the hair colorantcomposition, the stability of a perfume in the compositions becomesdifficult. As perfumes are essentially oils and hydrophobic in nature,combining perfumes with aqueous based systems essentially free ofsurfactants pose difficulties. One difficulty identified is theinability to keep perfumes stable within the hair colorant compositioncomponents when surfactant is not present or significantly reduced.Another difficulty is that the presence of a perfume can inhibit foamformation or “kills” a foam.

It has been found that a perfume made of a multi-component blend ofperfume raw materials in which up to 30% by weight of the perfumeconsists of essentially perfume raw materials having individual averageClogP in the range 1.5 to 2.5 and the balance of the perfume consistsessentially of perfume raw materials having a ClogP of less than 1.5wherein the entire perfume composition has an Average ClogP of less than1.5, may be used as a fragrance in the composition of the invention withcausing rapid collapse of the foam and which are able to be stablyincorporated into the composition. Preferred perfumes comprise amulti-component blend of perfume raw materials each having a ClogP of upto 2.5, wherein the entire perfume composition has an Average ClogP ofless than 1.5. It is most preferred that all of the perfume rawmaterials are stable at a pH of from 9 to 11.

As used herein “Average ClogP” means that the ClogP of the variousperfume raw materials with the weight percentage, based upon the weightof the entire perfume composition divided by 100 gives individualaverage ClogP for each component:

$\frac{{ClogP} \times {wt}\mspace{14mu} \% \mspace{14mu} \left( {{by}\mspace{14mu} {weight}\mspace{14mu} {of}\mspace{14mu} {the}\mspace{14mu} {perfume}\mspace{14mu} {composition}} \right)}{100}$

and the sum of the individual average ClogP values gives the AverageClogP.

It has been found that perfume raw materials not meeting the criteriaabove being present at levels of 500 ppm in the perfume compositioncause instability of the perfume composition in the hair colorantcomposition. Therefore, contaminates (as used herein “contaminates” meanperfume raw materials having a ClogP above 4) should be kept below 500ppm in the perfume composition.

The logP values of many perfume ingredients are taken from the ratio ofthe respective concentrations of a compound in the octanol and waterpartitions of a two-phase system at equilibrium. The concentrationmeasurements are made at a constant temperature of 25° C. The“calculated logP” (ClogP) is determined by the fragment approach ofHansch and Leo (cf., A. Leo, in Comprehensive Medicinal Chemistry, Vol.4, C. Hansch, P. G. Sammens, J. B. Taylor and C. A. Ramsden, Eds., p.295, Pergamon Press, 1990). The fragment approach is based on thechemical structure of each perfume ingredient, and takes into accountthe numbers and types of atoms, the atom connectivity, and chemicalbonding. The ClogP values, which are the most reliable and widely usedestimates for this physicochemical property, are preferably used insteadof the experimental logP values in the selection of perfume ingredientswhich are useful in the present invention. There are existingcomputational programs that can calculate ClogP values such as theCSLogP-3.0 from ChemiSilico.

The perfume is generally incorporated in the hair colorant compositionsin an amount of from 0.05 to 5%, generally 0.1 to 2%, for example 0.3 to1% by weight of the composition to be dispensed. In the case of amulti-part composition the perfume can be present in one or more of theparts. In the case of a kit for an hair colorant composition the perfumeis preferably present in at least the tint formulation component.

TABLE 1 Suitable perfume raw materials having a ClogP less than 1.5which are stable at pH between 9 and 11 include: CAS Chemical Name110-98-5 Bis(2-hydroxypropyl)_ether 107-31-3 METHYLFORMATE 34590-94-8DIPROPYLENE_GLYCOL_METHYL_ETHER 1110-65-1 Ethyl_Maltol 56539-66-33-Methoxy-3-Methyl_Butanol 71-36-3 Butyl_alcohol 1569-01-31-PROPOXY-2-PROPANOL 4798-45-2 4-METHYL-1-PENTEN-3-OL 1326-99-5Vaniwhite 108-95-2 Hydroxybenzene 57-55-6 1,2-PROPANEDIOL 25265-71-8Dipropylene_Glycol 22047-25-2 2-Acetylpyrazine 111-90-0DIETHYLENE_GLYCOL_MONOETHYL_ETHER 8000-41-7 tert-Butyl_alcohol 123-51-3Isopentyl alcohol 15707-23-0 PYRAZINE,_2-ETHYL-3-METHYL- 100-51-6 Benzylalcohol 928-96-1 cis-3-Hexen-1-ol (aka beta gamma hexenol) 928-95-0trans-2-Hexenol 28940-11-6 Oxalone (aka 7-Methyl-2H-benzo-1,5-dioxepin-3(4H)-one) 60-12-8 Phenethyl alcohol 1365-19-1 Linalool oxide 60047-17-8Linalool oxide (5) 15707-24-1 PYRAZINE,_2,3-DIETHYL- 118-71-8 Maltol120-57-0 Heliotropin (aka 3,4-Methylenedioxybenzaldehyde) 122-99-62-Phenoxyethanol 86803-90-9 octahydro-5-methoxy-4,7-Methano-1H-indene-2-carboxaldehyde 123-11-5 p-Anisaldehyde 6413-10-1 Ethyl2-methyl-1,3-dioxolane-2-acetate (aka methyl dioxolan) 75-18-3DIMETHYLSULFIDE 65416-14-0 Maltyl isobutyrate

TABLE 2 Preferred raw materials with a ClogP less than 1.5 include: CASChemical Name 7011-83-8 Methyl_alcohol 57-55-6 1,2-PROPANEDIOL25265-71-8 Dipropylene_Glycol 110-98-5 Bis(2-hydroxypropyl)_ether431-03-8 Diacetyl 22047-25-2 2-Acetylpyrazine 107-31-3 METHYLFORMATE3658-77-3 4-Hydroxy-2,5-dimethyl-3(2H)-furanone 25395-31-71,2,3-PROPANETRIOL,_DIACETATE 118-71-8 Maltol 111-90-0DIETHYLENE_GLYCOL_MONOETHYL_ETHER 77-93-0 Triethyl citrate 97-64-3Ethyl_lactate 34590-94-8 DIPROPYLENE_GLYCOL_METHYL_ETHER 1110-65-1Ethyl_Maltol 108-29-2 gamma-Valerolactone 4940-11-84H-Pyran-4-one,_2-ethyl-3-hydroxy-(aka ethyl maltol) 5405-41-4Butanoic_acid,_3-hydroxy-,_ethyl_ester 8000-41-7 tert-Butyl_alcohol141-78-6 ETHYL_ACETATE 56539-66-3 3-Methoxy-3-Methyl_Butanol 141-97-9ACETOACETIC_ESTER 71-36-3 Butyl_alcohol 1569-01-3 1-PROPOXY-2-PROPANOL105-53-3 DIETHYL_MALONATE 105-37-3 Ethyl_propionate 695-06-72(3H)-Furanone,_5-ethyldihydro- 614-18-6 NICOTINIC_ACID,_ETHYL_ESTER620-02-0 2-FURANCARBOXALDEHYDE,_5-METHYL- 6413-10-1 Ethyl2-methyl-1,3-dioxolane-2-acetate 134-96-3 Syringaldehyde 121-33-5Vanillin 4798-45-2 4-METHYL-1-PENTEN-3-OL 123-51-3 Isopentyl alcohol119-84-6 2H-1-Benzopyran-2-one,_3,4-dihydro- 121-34-64-HYDROXY-3-METHOXYBENZOIC_ACID 120-57-0 Heliotropin 1326-99-5 Vaniwhite15707-23-0 PYRAZINE,_2-ETHYL-3-METHYL- 100-51-6 Benzyl alcohol 5533-03-9VANIWHITE 90-05-1 2-METHOXYPHENOL 75-18-3 DIMETHYLSULFIDE 122-91-8Anisyl formate 108-95-2 Hydroxybenzene 122-99-6 2-Phenoxyethanol120-14-9 BENZALDEHYDE,_3,4-DIMETHOXY- 110-19-0 SEC-BUTYLACETATE 928-96-1cis-3-Hexen-1-ol 928-95-0 trans-2-Hexenol 28940-11-6 Oxalone 65416-14-0Maltyl isobutyrate 86803-90-9octahydro-5-methoxy-4,7-Methano-1H-indene-2- carboxaldehyde 100-52-7Benzaldehyde 123-11-5 p-Anisaldehyde 122-78-1 PHENYLACETALDEHYDE 60-12-8Phenethyl alcohol 1191-16-8 Prenyl acetate 104-57-4Formic_acid,_phenylmethyl_ester 1365-19-1 Linalool oxide 60047-17-8Linalool oxide (5) 15707-24-1 PYRAZINE,_2,3-DIETHYL-

TABLE 3 Suitable, perfume raw materials with a ClogP less than 2.5include: CAS Chemical Name 7011-83-8 Methyl_alcohol 57-55-61,2-PROPANEDIOL 25265-71-8 Dipropylene_Glycol 110-98-5Bis(2-hydroxypropyl)_ether 431-03-8 Diacetyl 22047-25-2 2-Acetylpyrazine107-31-3 METHYLFORMATE 3658-77-3 4-Hydroxy-2,5-dimethyl-3(2H)-furanone25395-31-7 1,2,3-PROPANETRIOL,_DIACETATE 118-71-8 Maltol 111-90-0DIETHYLENE_GLYCOL_MONOETHYL_ETHER 77-93-0 Triethyl citrate 97-64-3Ethyl_lactate 34590-94-8 DIPROPYLENE_GLYCOL_METHYL_ETHER 1110-65-1Ethyl_Maltol 108-29-2 gamma-Valerolactone 4940-11-84H-Pyran-4-one,_2-ethyl-3-hydroxy- 5405-41-4Butanoic_acid,_3-hydroxy-,_ethyl_ester 8000-41-7 tert-Butyl_alcohol141-78-6 ETHYL_ACETATE 56539-66-3 3-Methoxy-3-Methyl_Butanol 141-97-9ACETOACETIC_ESTER 71-36-3 Butyl_alcohol 1569-01-3 1-PROPOXY-2-PROPANOL105-53-3 DIETHYL_MALONATE 105-37-3 Ethyl_propionate 695-06-72(3H)-Furanone,_5-ethyldihydro- 614-18-6 NICOTINIC_ACID,_ETHYL_ESTER620-02-0 2-FURANCARBOXALDEHYDE,_5-METHYL- 6413-10-1 Ethyl2-methyl-1,3-dioxolane-2-acetate 134-96-3 Syringaldehyde 121-33-5Vanillin 4798-45-2 4-METHYL-1-PENTEN-3-OL 123-51-3 Isopentyl alcohol119-84-6 2H-1-Benzopyran-2-one,_3,4-dihydro- 121-34-64-HYDROXY-3-METHOXYBENZOIC_ACID 120-57-0 Heliotropin 1326-99-5 Vaniwhite15707-23-0 PYRAZINE,_2-ETHYL-3-METHYL- 100-51-6 Benzyl alcohol 5533-03-9VANIWHITE 90-05-1 2-METHOXYPHENOL 75-18-3 DIMETHYLSULFIDE 122-91-8Anisyl formate 108-95-2 Hydroxybenzene 122-99-6 2-Phenoxyethanol120-14-9 BENZALDEHYDE,_3,4-DIMETHOXY- 110-19-0 SEC-BUTYLACETATE 928-96-1cis-3-Hexen-1-ol 928-95-0 trans-2-Hexenol 28940-11-6 Oxalone 65416-14-0Maltyl isobutyrate 86803-90-9octahydro-5-methoxy-4,7-Methano-1H-indene-2- carboxaldehyde 100-52-7Benzaldehyde 123-11-5 p-Anisaldehyde 122-78-1 PHENYLACETALDEHYDE 60-12-8Phenethyl alcohol 1191-16-8 Prenyl acetate 104-57-4Formic_acid,_phenylmethyl_ester 1365-19-1 Linalool oxide 60047-17-8Linalool oxide (5) 15707-24-1 PYRAZINE,_2,3-DIETHYL- 121-32-4 Ethylvanillin 40203-73-4 Methyl_cyclopentylideneacetate 105-54-4 Ethylbutanoate 63767-86-2 Guaiacyl_acetate 123-86-4 N-BUTYL_ACETATE 91-64-5COUMARIN 51519-65-4 1,4,4A,7,8,8A-HEXAHYDRO-1,4-METHANONAPHTHALEN-5(6H)-ONE 94087-83-9 4-Methoxy-2-Methyl-2-Butanenthiol1 ppm In DPG 98-86-2 ACETOPHENONE 6728-26-3 Trans-2_Hexenal 623-37-03-HEXANOL 19872-52-7 4-Mercapto-4-methylpentanone-2 134-20-3 Methylanthranilate 529-20-4 2-METHYLBENZALDEHYDE 3943-74-6BENZOIC_ACID,_4-HYDROXY-3- METHOXY,_METHYL_ESTER 104-62-1 Phenethylformate 140-11-4 Benzyl acetate 107-75-5 Hydroxycitronellal 95-48-7o-Cresol 93-35-6 Umbelliferone 67019-89-0 3-Hexanol 106-44-5 p-Cresol93-58-3 BENZOIC_ACID,_METHYL_ESTER 1205-17-02-Methyl-3-(3,4-methylenedioxyphenyl)-propanal 107-74-4Hydroxy-citronellol 87731-18-8 violiff 4707-47-5 Veramoss 104-87-0P-TOLUALDEHYDE 122-97-4 Hydrocinnamyl alcohol 100-47-0 BENZONITRILE67845-46-9 p-Methyl_phenoxy_acetaldehyde 104-54-1 CINNAMYL_ALCOHOL1504-74-1 o-Methoxycinnamaldehyde 5471-51-2 para-hydroxy phenyl butanone100-06-1 Para Methoxy Acetophenone 67801-65-43,6-Dimethyl-3-cyclohexene-1-carboxaldehyde 104-21-2Benzenemethanol,_4-methoxy-,_acetate 94201-19-1 Methyl Laitone 10% TEC40527-42-2 Heliotropine diethyl acetal 4430-31-3 Octahydrocoumarin93-51-6 4-Methyl-2-methoxyphenol 150-78-7 P-DIMETHOXYBENZENE 1123-85-9Hydratopic alcohol 101-41-7 Methyl phenylacetate 97-54-1 Isoeugenol111-27-3 Caproyl alcohol 123-92-2 Isoamyl acetate 55418-52-5 Piperonylacetone 66327-54-6 Methyl_3-(2-furyl)acrylate 64988-06-3beta-Phenoxy_ethyl_acetate 24683-00-9 2-Isobutyl-3-methoxypyrazine66-25-1 HEXANAL 104-55-2 Cinnamic aldehyde 93-53-8Benzeneacetaldehyde,_.alpha.-methyl- 67633-96-9 Liffarome 85-91-6Benzoic_acid,_2-(methylamino)-,_methyl_ester 108-64-5 Ethyl isovalerate67634-16-6 2,4-Dimethyl-3-cyclohexene-1-methanol 67633-94-72-Methylbutyl_acetate 63500-71-0 Florol (aka 2-isobutyl-4-hydroxy-4-methyltetrahydropyran) 484-20-8 Bergapten(e) 20665-85-4 Vanillinisobutyrate 68039-44-1 5-Methylhexanoic_acid 2102-58-1 1-Carveol 65-85-0BENZOIC_ACID 538-86-3 BENZYL_METHYL_ETHER 501-52-0BETA-PHENYLPROPIONIC_ACID 7452-79-1 Ethyl 2-methylbutyrate 7493-74-5Allyl phenoxyacetate 138-87-4 beta-Terpineol 23911-56-0 Nerolione471-16-9 Bicyclo_3.1.0_hexan-3-ol,_4-methylene-1-(1-methy 18096-62-34,4a,5,9b-tetrahydroindeno[1,2-d]-1,3-dioxin 92015-65-1 KOUMALACTONE953320 104-50-7 gamma-Octalactone 31906-04-4 Lyral 110-93-05-Hepten-2-one,_6-methyl- 3391-86-4 1-Octenol-3 2568-25-4 Benzaldehydepropylene glycol acetal 586-81-2 Gamma Terpineol 539-82-2 ETHYL_VALERATE119-36-8 METHYL_SALICYLATE 3681-71-8 cis-3-Hexenylacetate 93-28-7Eugenyl acetate 97-53-0 Eugenol 628-63-7 n-Pentyl acetate 103-45-7B-PHENYLETHYL_ACETATE 101-48-4 Phenylacetaldehyde dimethyl acetal18640-74-9 2-Isobutylthiazole 21368-68-3 CAMPHOR GUM 464-49-3 CAMPHORGUM 65405-72-3 m-Tolyl_aldehyde 72402-00-7 Plinol 24168-70-52-Methoxy-3-(1-methylpropyl)pyrazine 101-39-3 alpha-Methylcinnamicaldehyde 2550-26-7 2-Butanone,_4-phenyl- 122-00-9 4-Methylacetophenone98-55-5 alpha-Terpineol 1301-15-2 Canthoxal 562-74-3 4-Terpinenol22457-23-4 Stemone 121-39-1 Ethyl 3-phenylglycidate 536-60-7Benzenemethanol,_4-(1-methylethyl)- 120-72-9 INDOLE 93-92-5 MethylPhenyl Carbinyl Acetate 100-86-7 Dimethyl benzyl carbinol 105-67-92,4-Xylenol 103-26-4 CINNAMIC_ACID,_METHYL_ESTER 89-79-2 Isopulegol2497-18-9 2-Hexen-1-yl_acetate 122-63-4 Benzyl propionate 93-89-0 Ethylbenzoate 104-09-6 Syringa Aldehyde 142653-61-0 PARMANYL 3/055119586-82-3 p-Menth-3-en-1-ol 1197-01-9 p,alpha,alpha-Trimethylbenzylalcohol 16251-77-7 3-Phenylbutanal 103-54-8 Cinnamyl acetate 68039-49-62,4-Dimethyl-3-Cyclohexene-1-carboxaldehyde 68039-49-62,4-Dimethyl-3-Cyclohexene-1-carboxaldehyde 20125-84-2 cis-3-Octen-1-ol1632-73-1 Fenchyl alcohol 4442-79-9 CYCLOHEXANEETHANOL 124-76-5Isoborneol 464-45-9 1-Borneol 189440-77-5 Anapear 5986-38-9 Ocimenol116-02-9 3,3,5-Trimethylcyclohexanol 141-92-4Hydroxycitronellal_dimethyl_acetal 4360-47-8 CINNAMALVA 1438-91-1Furfuryl methyl sulfide 105-68-0 1-Butanol,_3-methyl-,_propanoate68527-77-5 1,2,4-(or 1,3,5)-Trimethyl-3-cyclohexene-1- methanol5392-40-5 Citral 84-66-2 DIETHYL_PHTHALATE 1195-79-5 FENCHONE 78-70-6Linalool 1885-38-7 3-PHENYL-2-PROPENENITRILE 30772-79-34,7-Methano-1H-indenecarboxaldehyde, octahydro-, exo-, exo-, 58461-27-1Lavandulol 5462-06-6 Anisylpropanal 507-70-0 Borneol 101-97-3BENZENEACETIC_ACID,_ETHYL_ESTER 99-49-0 CARVONE 3558-60-9 Methylphenethyl ether 2563-07-7 Ultravanil 51435Tt 110-43-0 Methyl pentylketone 67634-00-8 Allyl amyl glycolate 111-71-7 HEPTANAL 91-62-36-Methylquinoline 239-88-1 Efetaal 66576-71-4 Isopropyl 2-methylbutyrate64001-15-6 Octahydro-4,7-methanoindan-5(6)-yl acetate 7786-44-92,6-Nonadien-1-ol 5948-04-9 d-Dihydrocarvone 7764-50-3 Dihydrocarvone620-17-7 M-ETHYLPHENOL 28069-72-9 (2E,6Z)-Nona-2,6-dien-1-ol 4180-23-8trans-Anethole 27135-90-6 Verdalia_A 13254-34-72-Heptanol,_2,6-dimethyl- 933-48-2 Cyclohexanol,_3,3,5-trimethyl-,_cis-104-61-0 gamma-Nonalactone 106-24-1 GERANIOL 106-25-2 Nerol 32764-98-06-(Z,3-Pentenyl)-tetrahydro-(2H)-pyranone-2 90-87-9 Hydratropaldehydedimethyl acetal 6485-40-1 L-Carvone 94-59-7 SAFROLE 68901-15-5Cyclogalbanate 18479-58-8 Dihydromyrcenol 2785-89-9Phenol,_4-ethyl-2-methoxy- 72903-27-6 Fructalate 53018-24-9 VERDALIA A75147-23-8 1,5-Dimethyl-bicyclo[3.2.1]octan-8-one, oxime- 103694-68-4Majantol

Other ingredients, whether conventionally used in hair colorantcompositions or not may be included if desired and not adverse to theformation of foam in the essential absence of surfactant (which may onlybe present in trace quantities as indicate above). Hence evaluation ofany additional ingredient versus the overall composition functionalityis needed and exclusion of components resulting in premature foamcollapse, such as oily or greasy substances, is advisable.

It has been found that certain materials, which are not surfactants, arecapable of acting as foam stabilizing agents in hair colorantcompositions. As used herein “foam stabilizing agents” include not onlycomponents that can help to stabilize the liquid film of the foambubbles, but components that may also generate foam. Therefore foamingagents are included in the meaning of foam stabilizing agents. Thesedesired agents allow stable foams of the hair colorant composition to beformed and maintained for the desired timeframe.

Foam Formation and Stability

Foam consists of a dispersion of gas bubbles in a liquid. Bubbles of gasrupture on contact with each other and additives are needed to retardthis contact. The bilayer films between two bubbles in foam are fairlyflat surfaces while the surfaces at plateau borders where three bubblesmeet are curved. There are known chemical-physical properties which slowdown or even stop the film thinning process caused by drainage andstabilize the foam.

Foam Stabilizing Agents

The foam stabilizing agents used in the compositions of the inventionare selected to provide foaming benefits and/or foam stabilizationbenefits and are stable in the presence of an oxidizing agent such ashydrogen peroxide or peroxymonocarbonate ions or in the presence ofalkaline pHs (such as that found in tint compositions). Suitable foamstabilizing agents include polymeric foam stabilizers and polymericemulsifiers. The foaming stabilizing agents of the present compositionare essentially free of surfactants traditionally used for foamformation and stabilization. Combinations of polymeric emulsifiers andpolymeric foam stabilizers are also embodied herein.

Polymeric Foam Stabilizers

Polymeric foam stabilizing agents suitable for use herein includecellulose materials such as methylcellulose (hydroxypropylmethylcellulose sold as METHOCEL 40-101 and methylcellulose sold asMETHOCEL A4MP) and ethylcellulose (Cecetyl hydroxyethylcellulose sold asNATROSOL PLUS).

The hydroxypropyl methylcellulose may have the general structure of:

The methylcellulose may have the general structure of:

The “n” of these structures is selected to give the desired viscosity.The METHOCEL 40-101 has a viscosity of about 75,000 mPa s (for a 2%aqueous solution at 20° C. with a Ubbelohde tube viscometer) and theMETHOCEL A4MP has a viscosity of about 4000-5000 mPa s (for a 2% aqueoussolution at 20° C. with a Ubbelohde tube viscometer).

Another suitable foam stabilizing agent includes (meth)acrylic polymerssuch as Acrylates/C₁₀₋₃₀ alkyl acrylate crosspolymer, a copolymer ofC₁₀₋₃₀ alkyl acrylates and one or more monomers of acrylic acid,methacrylic acid or one of their simple esters crosslinked with an allylether of sucrose or an allyl ether of pentaerythritol. It iscommercially available from Goodrich as PEMULEN TR-1 and PEMULEN TR-2.PEMULEN TR-1 polymer is preferred. CAPIGEL 98, an acrylates copolymerproduced by SEPPIC.

Another suitable foam stabilizing agent suitable for use herein is ahydrophobically-modified alkali soluble emulsion polymer synthesizedthrough an emulsion polymerization process from an acid/acrylatecopolymer backbone and a monomer that connects the hydrophobic groups asside chains. An example of such a material is ACULYN™ 22, commerciallyavailable from Rohm Haas, which is synthesized from acrylic acid,acrylate esters and a steareth-20 methacrylate ester with an INCI nameof Acrylates/Steareth-20 Methacrylate Copolymer.

Another suitable foam stabilizing agent includes anionic alkali-solublepolymer emulsion synthesized from acid and acrylate co-monomers throughemulsion polymerization. An example of such a material is ACULYN™ 33,commercially available from Rohm Haas with an INCI name of AcrylatesCopolymer.

Mixtures of ACULYN™ 22 and ACULYN™ 33 may be used. One embodimentutilizes a mixture of ACULYN™ 22 and ACULYN™ 33 in a ratio (weight) of5:1 to 1:5 weight ratio based upon the weight of the composition orbased upon the weight of the developer composition. In one embodiment, amixture of ACULYN™ 22 and ACULYN™ 33 in a ratio (weight) of 1:3 to 1:4by weight of the developer composition is utilized. In one embodiment, amixture of ACULYN™ 22 and ACULYN™ 33 in a ratio (weight) of 4:1 to 1:1by weight of the developer composition (containing the oxidising agent)is utilized.

Polyquaternium-55, a polymer comprising vinyl pyrrolidone (VP),dimethylaminopropyl methacrylamide (DMAPA) and methacryoylaminopropyllauryldimonium chloride (MAPLAC) is also suitable for use herein and hasthe following generalized structure:

Polyquaternium-55 is sold under the tradename STYLEZE® in a 10 and 20variation. The n, m and p levels depend on the monomer ratio. TheSTYLEZE®-10 has a monomer ratio of 0.85VP:0.11DMAPA:0.4MAPLAC. TheSTYLEZE®-20 has a monomer ratio of 0.85VP:0.11DMAPA:0.4MAPLAC.

Another suitable foam stabilizing agent includes a polyoxyethylene,polyoxypropylene block polymer that conforms generally to the formulashown below in which the average values of x, y and z are respectively31, 54 and 31.

sold under the tradename POLOXAMER 334.

Another suitable foam stabilizing agent includes apolyethyleneoxide-polypropyleneoxide-polyethyleneoxide block polymerterminating in primary hydroxyl groups sold under the tradename PLURONICP104 and PLURONIC F108 (ex. BASF).

Polymeric Emulsifiers

Suitable polymeric materials for use as a foam emulsifing agent includepolysaccharides, cellulosic materials, amine-bearing polymers, acidicpolymers obtainable from natural sources, chemically modified starches,carboxyvinyl polymers, polyvinylpyrrolidone, polyvinyl alcohol,polyacrylic acid polymers, polymethacrylic acid polymers, polysiloxanesand mixtures thereof.

Suitable polysaccharides include xanthan gum, carrageenin gum,guar-guar, cationic guars, hydroxypropyl guar gum, agar-agar, locustbean gum, alginates, tyloses, salts of any of these materials (such assodium salts) and mixtures thereof.

Suitable cellulosic materials include cellulose ethers, such ascarboxymethylcellulose, ethylcellulose, hydroxypropylcellulose,methylcellulose, cellulose mixed ethers, such ascarboxymethylhydroxyethylcellulose, ethylhydroxyethylcellulose,methoxyhydroxyalkylcelluloses, methylhydroxyalkylcelluloses, such asmethylhydroxyethylcellulose, methylhydroxypropylcellulose,methylhydroxybutylcellulose; and mixtures of these.

Suitable amine-bearing polymers include deacytylated chitin, sometimesknown as chitosan, which as been modified to be soluble in basicconditions usually by alkylation or by carboxymethylation, but othermodifications of chitin are also suitable. See Chitosan DerivativesObtained By Chemical Modifications For Biomedical And EnvironmentalApplications; International Journal of Biological Macromolecules; Volume43, Issue 5, 1, Dec. 2008, Pages 401-414.

Suitable polysiloxanes include dimethylpolysiloxanes,methylphenylpolysiloxanes, cyclic silicones as well as siliconecompounds modified by amino, fatty acid, alcohol, polyether, epoxy,fluoro, glycoside and or alkyl groups. Preferred as silicone compoundsaccording to the present invention are polysiloxane-polyether copolymersaka dimethicone copolyol, which are available from the company namedGoldschmidt AG of Essen under the trade name ABIL®, especiallypolysiloxane-polyether copolymers of the B 88 product family, such asABIL® B 8843, ABIL® B 8851, ABIL® B 8852, ABIL® B 8863, ABIL® B 88183and ABIL® B 88184.

The foaming stabilizing agent is present in the oxidizing hair colorantcomposition to be dispensed in an amount sufficient to allow formationand/or stabilization of foam without need for a surfactant. Thus, thereis sufficient foam stabilizing agent present to form and/or maintainfoam when the composition is substantially free of surfactant.Generally, the foam stabilizing agent will be present in an amount offrom 1 to 25% by weight, preferably 2 to 15% by weight, more preferably2 to 10% by weight of the hair colorant composition. In the case of amulti-part kit, the foam stabilizing agent may be present in one or moreof the components. Preferably, the foam stabilizing agent is present inthe component containing the oxidizing agent (developer) since a singledeveloper composition may be used with a plurality of different hair dye(tint) formulations that form several different hair shade colors. Thefoam stabilizing agent may be present in the developer composition from1 to 25% by weight, preferably 2 to 20% by weight, preferably from 5% to20% by weight of the developer composition.

Foam

As used herein “foam” means a personal care composition which afterbeing passed through a manually-actuable, non-aerosol dispenser hasbubbles that sustain their shape and give a volume independent of anytype of container. It is preferably that the volume is a foam specificvolume from about 6 mL/g to about 14 mL/g, such as about 7.5 mL/g toabout 12 mL/g, such as from about 8 mL/g to about 11 mL/g. Oneembodiment is a foam specific volume of about 10 mL/g.

As used herein “stroke” means deflecting a reservoir that is placedagainst a vertical flat surface, such as a wall, on the side of thereservoir opposite the wall, 30 mm towards the wall at a rate of 20 mmper second. “Squeeze” or “dispensed” are also included in the term“stroke”.

A manually-actuable, non-aerosol dispenser is optionally designed tohave a foam output per stroke or squeeze from about 0.5 gram/stroke toabout 5.0 gram/stroke, preferably about 0.8 gram/stroke to about 4.0gram/stroke, preferably from about 1.0 gram/stroke to about 4.0gram/stroke. In one embodiment, the manually-actuable, non-aerosoldispenser is optionally designed to have a foam output per stroke orsqueeze from about 1.8 gram/stroke to about 2.2 gram/stroke.

A manually-actuable, non-aerosol dispenser is optionally designed tohave a foam output per stroke or squeeze from about 3 mL/stroke to about70 mL/stoke, preferably from about 76 mL/stroke to about 48 mL/stroke,preferably from about 8 mL/stroke to about 44 mL/stroke, preferably fromabout 18 mL/stroke to about 22 mL/stroke.

The minimum time for the foam to retain its volume is at least longenough to transfer from a user's hand to the desired location, such ason the hair, e.g. the foam substantially maintains its shape and foamspecific volume. A preferred minimum time is for at least 10 seconds,for example at least 12, or at least 15 seconds. It could be longerminimum time if a quantity of foam, e.g. a bowl full by a hair dresser,is generated and spreading on the head only starts once the bowl full isreadily made, such as 5 minutes or such as 10 minutes.

In order to fulfill the coloring action, hair colorant compositions needto reach and disperse on the hair. Hence a foam hair color compositionneeds to collapse within the time usually allocated for hair coloring(e.g., 10 to 30 minutes). The collapse of the foam could be as quicklyas 3 to 10 minutes but may be up to 15 minutes, or up to 30 minutes. Theamount of sebum on hair can affect the foam and cause it to collapse.The more sebum on the hair, the faster the foam collapses on the hair.

Rheology Profile

The hair colorant composition has a desired rheological profile duringusage that ensures a desired user experience when in contact with thehair colorant composition. The composition of the present invention issubject to different stress/strain forces during the consumer's use ofthe formulation. The formulation is subject to mixing of two componentstogether to form the desired hair colorant composition, such as shakingof a container holding the two components. The formulation is thenfoamed by passing it through the foaming means, such as a squeezefoaming engine and is dispensed into a user's hand. The formulation isthen applied to the desired surface, such as hair, and the foamcollapses and forms a liquid on the desired surface, such as hair. Thedesired resulting viscosity of the hair colorant composition after thecollapse of the foamed hair colorant composition is selected such thatthe composition does not drip or run from the surface on which it isapplied, such as hair on the head of a user.

As used herein “low shear viscosity” means a composition is measured ata shear rate 0.01 s⁻¹ according to the method below. The low shearviscosity is believed to represent (1) the viscosity of the compositionas it sits in the reservoir and (2) the viscosity of the composition“post-foam collapse”. In other words, the post-foam collapse is when thecomposition is foamed by the dispenser and then the foam collapses. Thelow shear viscosity in the rheology profile contributes to reducing theamount of foam generated in the head space in the reservoir when thecomposition is mixed or shaken by a user. Further, the low shearviscosity in the rheology profile of the composition post-foam collapseis important with respect to whether the composition stays on thedesired surface or if the composition runs or drips from the surfaceafter the foam collapses. The low shear viscosity of the hair coloringcomposition is above 1000 mPa s (1000 cps), preferably from about 1000mPa s (1000 cps) to about 10,000 mPa s (10,000 cps), preferably fromabout 2000 mPa s (2000 cps) to about 9000 mPa s (9000 cps), andpreferably from about 2000 mPa s (2000 cps) to about 5000 mPa s (5000cps).

As used herein “high shear viscosity” means a composition is measured ata shear rate 500 s⁻¹ according to the method below. The high shearviscosity is believed to represent the viscosity of the hair colorantcomposition moving from the reservoir to the dispensing head orifice,usually through a foaming means such as the mixing chamber. The highshear viscosity of the hair colorant composition is less than 200 mPa s(200 cps), preferably less than 100 mPa s (100 cps), preferably fromabout 1 mPa s (1 cps) to about 200 mPa s (200 cps).

Additional Hair Colorant Ingredients Solvent

The hair colorant composition may comprise solvents such as water, loweraliphatic alcohols, for example aliphatic alcohols with from 1 to 4carbon atoms such as ethanol, propanol and isopropanol, or glycols suchas glycerin and 1,2-propylene glycol. The solvents may be utilized forthe hair colorant composition or in pre-composition components such asthe tint composition or developer composition in concentrations of from0.1 to 30% by weight.

Alkalizing Agent

The hair colorant composition, generally in a tint composition,comprises an alkalizing agent, preferably a source of ammonium ions orammonia. Any alkalizing agent known in the art may be used such asalkanolamides for example monoethanolamine, diethanolamine,triethanolamine, monopropanolamine, dipropanolamine, tripropanolamine,2-amino-2-methyl-1,3-propanediol, 2-amino-2-methyl-1-propanol, and2-amino-2-hydroxymethyl-1,3-propanediol, guanidium salts, and alkalimetal and ammonium hydroxides and carbonates, such as sodium hydroxideand ammonium carbonate. Particularly, preferred alkalizing agents arethose which provide a source of ammonium ions. Any source of ammoniumions is suitable for use herein. Preferred sources include ammoniumchloride, ammonium sulphate, ammonium nitrate, ammonium phosphate,ammonium acetate, ammonium carbonate, ammonium hydrogen carbonate,ammonium carbamate, ammonium hydroxide, percarbonate salts, ammonia andmixtures thereof. Particularly preferred are ammonium carbonate,ammonium carbamate, ammonia and mixtures thereof. Suitable alkalizingagents also include acidulents, such as inorganic and organic acids,e.g., phosphoric acid, acetic acid, ascorbic acid, citric acid ortartaric acid, hydrochloric acid, and mixtures thereof.

The hair colorant composition or the tint composition may comprise fromabout 0.1% to about 10% by weight, such as from about 0.5% to about 5%,such as from about 1% to about 3% of an alkalizing agent, such as asource of ammonium ions.

Oxidizing Agent

The hair colorant compositions herein, generally in the developercomposition, may comprise at least one source of an oxidizing agent.Preferred oxidizing agents for use herein are water-soluble peroxygenoxidizing agents. “Water-soluble” as defined herein means that instandard condition at least 0.1 g, preferably 1 g, more preferably 10 gof said oxidizing agent can be dissolved in 1 liter of deionized water.The oxidizing agents are valuable for the initial solubilization anddecolorization of the melanin (bleaching) and accelerate the oxidationof the oxidative dye precursors (oxidative dyeing) in the hair shaft.

The oxidizing agent may be selected from water-soluble oxidizing agentswhich are inorganic peroxygen materials capable of yielding hydrogenperoxide in an aqueous solution. The oxidizing agents may be provided inaqueous solution or as a powder which is dissolved prior to use.Water-soluble oxidizing agents include hydrogen peroxide, inorganicalkali metal peroxides such as sodium periodate and sodium peroxide andorganic peroxides such as urea peroxide, melamine peroxide, andinorganic perhydrate salt bleaching compounds, such as the alkali metalsalts of perborates, percarbonates, perphosphates, persilicates,persulphates and the like. These inorganic perhydrate salts may beincorporated as monohydrates, tetrahydrates etc. Alkyl and arylperoxides, and or peroxidases may also be used. Mixtures of two or moresuch oxidizing agents can also be used if desired. Preferred for use inthe compositions according to the present invention are hydrogenperoxide, percarbonate, persulphates and combinations thereof.

The oxidative agent may comprise from about 0.1% to about 40% by weight,preferably from about 1% to about 30% by weight, and most preferablyfrom about 2% to about 30% by weight of the hair colorant composition ordeveloper composition. Another potential oxidizing agent for use hereinis a source of peroxymonocarbonate ions. Preferably such a source isformed in situ from a source of hydrogen peroxide and a hydrogencarbonate ion source. Such an oxidizing agent has been found to beparticularly effective at a pH (of the hair care composition) of up toand including 9.5, preferably 7.5 to 9.5 more preferably about pH 9.Moreover, this system is also particularly effective in combination witha source of ammonia or ammonium ions. It has been found that thisoxidizing agent can deliver improvements to the desired hair colorresults particularly with regard to the delivery of high lift, whilstconsiderably reducing the odor, skin and scalp irritation and damage tothe hair fibers.

Accordingly, any source of these peroxymonocarbonate ions may beutilized. Suitable sources for use herein include sodium, potassium,guanidine, arginine, lithium, calcium, magnesium, barium, ammonium saltsof carbonate, carbamate and hydrocarbonate ions and mixtures thereofsuch as sodium carbonate, sodium hydrogen carbonate, potassiumcarbonate, potassium hydrogen carbonate, guanidine carbonate, guanidinehydrogen carbonate, lithium carbonate, calcium carbonate, magnesiumcarbonate, barium carbonate, ammonium carbonate, ammonium hydrogencarbonate and mixtures thereof. Percarbonate salts may also be utilizedto provide both the source of carbonate ions and as an oxidizing agent.Preferred sources of carbonate ions, carbamate and hydrocarbonate ionsare sodium hydrogen carbonate, potassium hydrogen carbonate, ammoniumcarbamate, and mixtures thereof.

The oxidative agent may comprise from about 0.1% to about 15% by weight,preferably from about 1% to about 10% by weight, and most preferablyfrom about 1% to about 8% by weight of a hydrogencarbonate ion and fromabout 0.1% to about 10% by weight, preferably from about 1% to about 7%by weight, and most preferably from about 2% to about 5% by weight ofthe oxidative agent of a source of hydrogen peroxide.

pH

The hair colorant compositions of the present invention may have a pH offrom 8 to 12, preferably from 8 to 10. For embodiments comprising aperoxymoncarbonate ion, the pH is preferably up to and including pH 9.5,more preferably from about 9.5 to about 7.5, even more preferably fromabout 9.5 to about 8.4, most preferably from about 9.4 to about 8.5, andeven more preferably about pH 9.3 or 9.0.

Any sub-components of the hair colorant compositions, such as a tintcomposition or a developer composition may have a different pH from thehair colorant composition. For example, if the tint compositioncomprises an alkalizing agent, the tint composition will have analkaline pH, such as higher than 8.

The pH of the compositions can be determined by using either a MettlerToledo MP220 or a MP225 pH equipment, fitted with a standard laboratorypH electrode. The equipment is calibrated before each use using standardcalibration buffers and using the standard calibration procedure.

Hair Dye

The hair colorant composition contains a hair dye which may be selectedfrom those known in the art, e.g. oxidative dye precursors, throughwhich the coloring is produced by the action of oxidizing agents, suchas for example hydrogen peroxide, or in the presence of atmosphericoxygen (if necessary with the addition of a suitable enzyme system). Thehair dye may be a oxidative dye precursor, a direct dye or a mixturethereof.

Oxidative Dye Precursors

The hair care compositions or a sub-component thereof (tint composition)may include oxidative dye precursor in the form of primary intermediatesor couplers. The compounds suitable for use in the hair colorantcompositions (including those optionally added), in so far as they arebases, may be used as free bases or in the form of their physiologicallycompatible salts with organic or inorganic acids, such as hydrochloric,hydrobromic, citric, acetic, lactic, succinic, tartaric, or sulfuricacids, or, in so far as they have aromatic hydroxyl groups, in the formof their salts with bases, such as alkali phenolates.

These compounds are well known in the art, and include aromaticdiamines, aminophenols, aromatic diols and their derivatives (arepresentative but not exhaustive list of oxidation dye precursor can befound in Sagarin, “Cosmetic Science and Technology”, “Interscience,Special Edn. Vol. 2 pages 308 to 310). It is to be understood that theprecursors detailed below are only by way of example and are notintended to limit the compositions and processes herein. These are:1,7-Dihydroxynaphthalene (1,7-NAPHTHALENEDIOL); 1,3-Diaminobenzene(m-PHENYLENEDIAMINE); 1-Methyl-2,5-diaminobenzene (TOLUENE-2,5-DIAMINE);1,4-Diaminobenzene (p-PHENYLENEDIAMINE); 1,3-Dihydroxybenzene(RESORCINOL); 1,3-Dihydroxy-4-chlorobenzene, (4-CHLORORESORCINOL);1-Hydroxy-2-aminobenzene, (o-AMINOPHENOL); 1-Hydroxy-3-aminobenzene(m-AMINOPHENOL); 1-Hydroxy-4-amino-benzene (p-AMINOPHENOL);1-Hydroxynaphthalene (1-NAPHTHOL); 1,5-Dihydroxynaphthalene(1,5-NAPHTHALENEDIOL); 2,7-dihydroxynaphthalene (2,7-NAPHTHELENEDIOL);1,4-Dihydroxybenzene (HYDROQUINONE); 1-Hydroxy-4-methylaminobenzene(p-METHYLAMINOPHENOL); 6-Hydroxybenzo-morpholine(HYDROXYBENZOMORPHOLINE); 1-Methyl-2-hydroxy-4-aminobenzene(4-AMINO-2-HYDROXY-TOLUENE);1-Methyl-2-hydroxy-4-(2′-hydroxyethyl)aminobenzene(2-METHYL-5-HYDROXY-ETHYLAMINO-PHENOL); 1,2,4-Trihydroxybenzene(1,2,4-TRIHYDROXYBENZENE); 1-Phenol-3-methylpyrazol-5-on(PHENYLMETHYLPYRAZOLONE); 1-(2′-Hydroxyethyloxy)-2,4-diaminobenzene(2,4-DIAMINOPHENOXY-ETHANOL HCL); 1-Hydroxy-3-amino2,4-dichlorobenzene(3-AMINO-2,4-DICHLORO-PHENOL); 1,3-Dihydroxy-2-methylbenzene(2-METHYLRESORCINOL); 1-Amino-4-bis-(2′-hydroxyethyl)aminobenzene(N,N-BIS(2-HYDROXY-ETHYL)-p-PHENYLENE-DIAMINE);2,4,5,6-Tetraminopyrimidine (HC Red 16);1-Hydroxy-3-methyl-4-aminobenzene (4-AMINO-m-CRESOL);1-Hydroxy-2-amino-5-methylbenzene (6-AMINO-m-CRESOL);1,3-Bis-(2,4-Diaminophenoxy)propane(1,3-BIS-(2,4-DIAMINO-PHENOXY)-PROPANE);1-(2′-Hydroxyethyl)-2,5-diaminobenzene (HYDROXYETHYL-p-PHENYLENE DIAMINESULPHATE); 1-Methoxy-2-amino-4-(2′-hydroxyethylamino)benzene,(2-AMINO-4-HYDROXYETHYLAMINOANISOLE);1-Hydroxy-2-methyl-5-amino-6-chlorobenzene (5-AMINO-6-CHLORO-o-CRESOL);1-Hydroxy-2-amino-6-methylbenzene (6-AMINO-o-CRESOL);1-(2′-Hydroxyethyl)-amino-3,4-methylenedioxybenzene(HYDROXYETHYL-3,4-METHYLENEDIOXY-ANILINE HCl);2,6-Dihydroxy-3,4-dimethylpyridine (2,6-DIHYDROXY-3,4-DIMETHYLPYRIDINE);3,5-Diamino-2,6-dimethoxypyridine (2,6-DIMETHOXY-3,5-PYRIDINEDIAMINE);5,6-Dihydroxyindole (5,6-DIHYDROXY-INDOLE); 4-Amino-2-aminomethylphenol(2-AMINOETHYL-p-AMINO-PHENOL HCl); 2,4-Diamino-5-methylphenetol(2,4-DIAMINO-5-METHYL-PHENETOLE HCl);2,4-Diamino-5-(2′-hydroxyethyloxy)toluene(2,4-DIAMINO-5-METHYL-PHENOXYETHANOL HCl);5-Amino-4-chloro-2-methylphenol (5-AMINO-4-CHLORO-o-CRESOL);1,3-Bis(N(2-Hydroxyethyl)N(4-amino-phenyl)amino)-2-propanol(HYDROXYPROPYL-BIS-(N-HYDROXY-ETHYL-p-PHENYLENEDIAMINE)HCL);6-Hydrorxyindole (6-HYDROXY-INDOLE); 2,3-Indolinedione (ISATIN);3-Amino-2-methylamino-6-methoxypyridine (HC BLUE NO. 7);1-Phenyl-3-methyl-5-pyrazolone(2,4-DIHYDRO-5-METHYL-2-PHENYL-3H-PYRAZOL-3-ONE);2-Amino-3-hydroxypyridine (2-AMINO-3-HYDROXYPYRIDINE); 5-Amino-salicylicacid; 1-Methyl-2,6-bis(2-hydroxy-ethylamino)benzene(2,6-HYDROXYETHYLAMINO-TOLUENE); 4-Hydroxy-2,5,6-triaminopyrimidine(2,5,6-TRIAMINO-4-PYRIMIDINOL SULPHATE);2,2′-[1,2-Ethanediyl-bis-(oxy-2,1-ethanediyloxy)]-bis-benzene-1,4-diamine(PEG-3,2′,2′-DI-p-PHENYLENEDIAMINE); 5,6-Dihydroxyindoline(DIHYDROXYINDOLINE); N,N-Dimethyl-3-ureidoaniline(m-DIMETHYL-AMINO-PHENYLUREA); 2,4-Diamino-5-fluortoluenesulfatehydrate(4-FLUORO-6-METHYL-m-PHENYLENEDIAMINE SULPHATE);1-Acetoxy-2-methylnaphthalene (1-HYDROXYYETHYL-4,5-DIAMINOPYRAZOLESULPHATE); 1-acetoxy-2-methylnaphthalene (2-METHYL-1-NAPHTHOL);2-amino-5-ethylphenol (2-AMINO-5-ETHYLPHENOL);2,4-dichloro-3-aminophenol (3-AMINO-2,4-DICHLOROPHENOL); andp-Anilinoaniline (N-PHENYL-P-PHENYLENEDIAMINE).

Direct Dyes

The hair colorant compositions may also comprise compatible direct dyes,in an amount sufficient to provide coloring, particularly with regard tointensity. Typically, such an amount will range from about 0.05% toabout 4%, by weight of the hair colorant composition of a sub-componentsuch as a tint composition. Suitable direct dyes include but are notlimited to: Acid Yellow 1; Acid Orange 3; Disperse Red 17; Basic Brown17; Acid Black 52; Acid Black 1; Disperse Violet 4;4-nitro-o-phenylenediamine; 2-nitro-p-phenylenediamine; Picramic Acid;HC Red No. 13; 1,4-bis-(2′-hydroxyethyl)-amino-2-nitrobenzene; HC YellowNo. 5; HC Red No. 7; HC Blue No. 2; HC Yellow No. 4; HC Yellow No. 2; HCOrange No. 1; HC Red No. 1;2-chloro-5-nitro-N-hydroxyethyl-p-phenylenediamine; HC Red No. 3;4-amino-3-nitrophenol; 2-hydroxyethylamino-5-nitroanisole;3-nitro-p-hydroxyethylaminophenol; 2-amino-3-nitrophenol;6-nitro-o-toluidine; 3-methylamino-4-nitrophenoxyethanol;2-nitro-5-glycerylmethylaniline; HC Yellow No. 11; HC Violet No. 1; HCOrange No. 2; HC Orange No. 3; HC Yellow No. 9; 4-nitrophenylaminoethylurea; HC Red No. 10; HC Red No. 11; 2-hydroxyethyl picramicacid; HC Blue No. 12; HC Yellow No. 6; hydroxyethyl-2-nitro-p-toluidine;HC Yellow No. 12; HC Blue No. 10; HC Yellow No. 7; HC Yellow No. 10; HCBlue No. 9; N-ethyl-3-nitro PABA;4-amino-2-nitrophenyl-amine-2′-carboxylic acid;2-chloro-6-ethylamino-4-nitrophenol; 6-nitro-2,5-pyridinediamine; HCViolet No. 2; 2-amino-6-chloro-4-nitrophenol;4-hydroxypropylamino-3-nitrophenol; HC Yellow No. 13;1,2,3,4-tetrahydro-6-nitrochinoxalin; HC Red No. 14; HC Yellow No. 15;HC Yellow No. 14; 3-amino-6-methylamino-2-nitropyridine;2,6-diamino-3-((pyridine-3-yl)azo)pyridine; Basic Red No. 118; BasicOrange No. 69; N-(2-nitro-4-aminophenyl)-allylamine;4-[(4-amino-3-methylphenyl)(4-imino-3-methyl-2,5-cyclohexadien-1-ylidene)methyl]-2-methyl-benzeneamine-hydrochloride;2-[[4-(dimethyl-amino)phenyl]azo]-1,3-dimethyl-1H-imidazolium chloride;1-methyl-4-[(methylphenyl-hydrazono)methyl]-pyridinium, methyl sulfate;2-[(4-aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride; Basic Red22; Basic Red 76; Basic Brown 16; Basic Yellow 57;7-(2′,4′-dimethyl-5′-sulfophenylazo)-5-sulfo-8-hydroxynaphthalene; AcidOrange 7; Acid Red 33;1-(3′-nitro-5′-sulfo-6′-oxophenylazo)-oxo-naphthalene chromium complex;Acid Yellow 23; Acid Blue 9; Basic Violet 14; Basic Blue 7; Basic Blue26; sodium salt of mixture of mono- & disulfonic acids (mainly thelatter) of quinophthlanone or 2-quinolylindandione; Basic Red 2; BasicBlue 99; Disperse Red 15; Acid Violet 43; Disperse Violet 1; Acid Blue62; Pigment Blue 15; Acid Black 132; Basic Yellow 29; Disperse Black 9;1-(N-methylmorpholinium-propylamino)-4-hydroxy-anthraquinonemethylsulfate;N,N-dimethyl-3-((4-(methylamino)-9,10-dioxo-9,10-dihydroanthracen-1-yl)amino)-N-propylpropan-1-aminiumbromide, HC Blue No. 8; HC Red No. 8; HC Green No. 1; HC Red No. 9;2-hydroxy-1,4-naphthoquinone; Acid Blue 199; Acid Blue 25; Acid Red 4;Henna Red; Indigo; Cochenille; HC Blue No. 14; Disperse Blue 23;Disperse Blue 3; Disperse Blue 377; Basic Red 51; Basic Orange 31; BasicYellow 87; and mixtures thereof. Preferred direct dyes include but arenot limited to: Disperse Black 9; HC Yellow 2; HC Yellow 4; HC Yellow15; 4-nitro-o-phenylenediamine; 2-amino-6-chloro-4-nitrophenol; HC Red3; Disperse Violet 1; HC Blue 2; Disperse Blue 3; Disperse Blue 377;Basic Red 51; Basic Orange 31; Basic Yellow 87; and mixtures thereof.

To obtain specific color shades, moreover, additional conventionalnatural and/or synthetic direct dyes can be contained in the colorant,for example plant pigments such as henna or indigo, triphenylmethanedyes, aromatic nitro dyes, azo dyes, quinone dyes, cationic dyes (Basicdyes) or anionic dyes (Acid dyes).

Chelants

The hair colorant compositions or sub-components thereof (such as a tintcomposition or developer composition) comprise a carboxylic acidchelant, a phosphonic acid chelant, a polyphosphoric acid chelant, saltsthereof, or mixtures thereof. Suitable chelants includediethylenetriamine pentaacetic acid (DTPA),ethylenediamine-N,N′-disuccinic acid (EDDS),ethylenediamine-N,N′-diglutaric acid (EDDG),2-hydroxypropylenediamine-N,N′-disuccinic acid (HPDDS),glycinamide-N,N′-disuccinic acid (GADS),ethylenediamine-N-N′-bis(ortho-hydroxyphenyl acetic acid) (EDDHA),diethylene-triamine-penta-(methylenephosphonic acid) (DTPMP), saltsthereof, derivatives thereof, or mixtures thereof.

The hair colorant composition or sub-component thereof, such as the tintcomposition, comprise from about 0.01% to about 5%, from about 0.25% toabout 3%, from about 0.5% to about 1% by weight of the hair colorantcomposition, or sub-component thereof of chelant, salts thereof,derivatives thereof, or mixtures thereof.

Radical Scavenger

The hair colorant compositions, preferably the tint compositions, mayfurther comprise a source of radical scavenger. As used herein the termradical scavenger refers to a species that can react with a carbonateradical to convert the carbonate radical by a series of fast reactionsto a less reactive species, i.e. a carbonate radical scavenger.

Suitable radical scavengers for use herein may be selected from theclasses of alkanolamines, amino sugars, amino acids, esters of aminoacids and mixtures thereof. Particularly preferred compounds are:monoethanolamine, 3-amino-1-propanol, 4-amino-1-butanol,5-amino-1-pentanol, 1-amino-2-propanol, 1-amino-2-butanol,1-amino-2-pentanol, 1-amino-3-pentanol, 1-amino-4-pentanol,3-amino-2-methylpropan-1-ol, 1-amino-2-methylpropan-2-ol,3-aminopropane-1,2-diol, glucosamine, N-acetylglucosamine, glycine,arginine, lysine, proline, glutamine, histidine, sarcosine, serine,glutamic acid, tryptophan, and mixtures thereof, and the salts such asthe potassium, sodium and ammonium salts thereof and mixtures thereof.Especially preferred compounds are glycine, sarcosine, lysine, serine, 2methoxyethylamine, glucosamine, glutamic acid, morpholine, piperidine,ethylamine, 3 amino-1-propanol and mixtures thereof.

The compositions of the present invention may comprise from about 0.1%to about 10% by weight, preferably from about 1% to about 7% by weightof the hair colorant composition or the tint composition of a radicalscavenger.

Preferably, the radical scavenger is present at an amount such that theweight ratio of radical scavenger to carbonate ion is from 2:1 to 1:4.The radical scavenger is also preferably selected such that it is not anidentical species as the alkalizing agent.

Conditioning Agent

The hair colorant composition may comprise a conditioning agent althoughthe conditioning agent would need to be carefully selected to notinhibit foam formation or stabilization, including premature foamcollapse. Optionally, a separate conditioning composition comprising aconditioning agent may be used with the hair colorant product.

Conditioning agents suitable are selected from silicone materials, aminosilicones, fatty alcohols, polymeric resins, polyol carboxylic acidesters, cationic polymers and mixtures thereof. Additional materialsinclude glycerin and sorbitol. Particularly useful conditioningmaterials are cationic polymers. Conditioners of cationic polymer typecan be chosen from those comprising units of at least one amine groupchosen from primary, secondary, tertiary and quaternary amine groupsthat may either form part of the main polymer chain, or be borne by aside substituent that is directly attached to the main polymer chain.

Silicones can be selected from polyalkylsiloxane oils, linearpolydimethylsiloxane oils containing trimethylsilyl orhydroxydimethylsiloxane endgroups, polymethylphenylsiloxane,polydimethylphenylsiloxane or polydimethyldiphenylsiloxane oils,silicone resins, organofunctional siloxanes having in their generalstructure one or a number of organofunctional group(s), the same ordifferent, attached directly to the siloxane chain or mixtures thereof.Said organofunctional group(s) are selected from: polyethyleneoxy and/orpolypropyleneoxy groups, (per)fluorinated groups, thiol groups,substituted or unsubstituted amino groups, carboxylate groups,hydroxylated groups, alkoxylated groups, quaternium ammonium groups,amphoteric and betaine groups. The silicone can either be used as a neatfluid or in the form of a pre-formed emulsion.

The conditioning agent may be used at levels of from about 0.05% toabout 20% by weight of the conditioning composition, such as from about0.1% to about 15%, such as of from about 0.2% to about 10%, such as fromabout 0.2% to about 2% by weight of the conditioning composition. Ifutilized in the hair colorant composition itself, the conditioning agentmay be used from about 0.05% to about 5% by weight of the hair colorantcomposition.

Other Optional Ingredients

Other ingredients, whether conventionally used in hair colorantcompositions or not, may be included if desired and are not adverse tothe formation of foam in composition including compositions essentialfree of surfactant. Hence evaluation of any additional ingredient versusthe overall composition functionality is needed and exclusion ofcomponents resulting in premature foam collapse, such as oily or greasysubstances, is advisable.

Hair Colorant Composition Product

In one embodiment, the present application relates to a hair colorantcomposition product comprising a manually-actuable, non-aerosoldispenser equipped with a reservoir comprising a reservoir volume, amixing chamber and a dispensing head. The reservoir may contain an haircolorant composition and when the manually-actuable, non-aerosoldispenser is actuated, the hair colorant composition is mixed with airin a liquid to air ratio of from about 1:6 to about 1:15 and the haircolorant composition is dispensed as a foam.

Manually-actuable, non-aerosol dispensers for foam generation are wellknown in the art. These foam dispensers comprise a reservoir for holdinga liquid to be dispensed in the form of foam with an assembly which canbe mounted on or in an opening of the reservoir. The assembly comprisesa dip tube which extends into the reservoir and then into a mixingchamber, a liquid pump for pumping the liquid from the reservoir and anair pump to mix air with the liquid in the mixing chamber in order toform foam. The foam is dispensed out of the mixing chamber and through adispensing channel out of a dispensing head comprising a dispensingorifice. In the dispensing channel one or more porous elements such assieves or screens that may be arranged to form homogeneous foam.

The amount of work required for dispensing the hair colorant compositionwith the rheology profiles described herein is unique verses known haircolorant compositions. It is unique in that with known hair colorantcompositions, more work is expended moving air than the liquid in suchsystems. For the hair colorant compositions of the present inventionhaving specific rheology profiles, more work is expended to move theliquid than the air in such systems. The dispensing of the hair colorantcomposition can be carried out by squeezing an exterior of the reservoirof the manually-actuable, non-aerosol dispenser. Consistent therewith,the foam can be dispensed through the dispensing head orifice of thedispensing head.

The use of hair colorant compositions with the desired rheology profileand the amount of work required to move the hair colorant compositionfurther poses unique problems relating the amount of shear generated inthe manually-actuable, non-aerosol dispensers suitable for use herein.The use of hair colorant compositions with the desired rheology profilefurther affects the ratio of air to liquid. The amount of work, sheargeneration and air to liquid ratio are aspects that can be attributed tothe manually-actuable, non-aerosol dispenser structure.

The ratio of air to liquid is from about 1:6 to about 1:15, preferablyfrom about 1:8 to about 1:12, preferably 1:10.

Suitable manually-actuable, non-aerosol dispenser structure include thedimensions of the dip tube, dimensions of the air ingress into themixing chamber, mixing chamber dimensions, including the ingress andegress orifices from the mixing chamber, dispensing channel dimensions,porous elements (such as screens or meshes) and dispensing head orifice.

The manually-actuable, non-aerosol dispenser may be exemplified by thefollowing patents: U.S. Pat. No. 3,709,437; U.S. Pat. No. 3,937,364;U.S. Pat. No. 4,022,351; U.S. Pat. No. 4,147,306; U.S. Pat. No.4,184,615; U.S. Pat. No. 4,615,467; and FR 2,604,622. One particularexample of a squeeze foamer useful herein is a squeeze foamer that isable to dispense from an upright or inverted position such as the onediscussed in U.S. Pat. No. 6,604,693 assigned to Taplast, and morespecifically, at column 2, line 65, through column 4, line 67 of thatpatent.

The manually-actuable, non-aerosol dispenser may comprise a reservoir.The reservoir comprises a volume such that the reservoir volume islarger that the volume of the hair colorant composition contained withinthe reservoir. The area of the reservoir that is not occupied by thehair colorant composition is the head space. The head space shouldremain relatively free of the hair colorant composition or bubbles ofthe hair colorant composition. If the reservoir is shaken or invertedwhile the hair colorant composition is contained therein, the head spaceshould remain relatively free of the hair colorant composition orbubbles. As used herein, “relatively free” means less than 50%, such asless than 75%, such as less than 90%, such as 75% to 100% of the headspace contains the hair colorant composition or bubbles.

The reservoir is selected to have enough volume to contain the haircolorant composition, any mechanism for foaming the hair colorantcomposition and head space. The reservoir volume in one embodiment isselected to be from about 100 ml to about 500 ml, from about 150 ml toabout 400 ml, such as 250 ml. The ratio of the reservoir volume to haircolorant composition volume is from about 1:0.30 (30% full) to about1:0.70 (70% full), such as from about 1:0.40 (40% full) to about 1:0.55(55% full) (i.e., the reservoir volume is larger than the hair colorantcomposition volume).

The shape of the reservoir may be selected such that when the haircolorant composition is contained within the reservoir, the forcerequired per volume displacement may be optimized. In one embodiment,the force required per volume'displacement is optimized when the shapeof the bottle is selected to have an elliptical cross-section as viewedfrom vertical axis of the bottle (from the top or bottom of the bottle).The elliptical cross-section is preferably concentric such that a necksuitable for a threaded or snap-on cap may be used to close thereservoir. The major axis of the elliptical cross-section is orientatedsuch that it is perpendicular to the force applied to the reservoirsurface

FIG. 1 illustrates a general structure for a personal care compositionproduct (25) comprising a foamer assembly (1) and a reservoir (3).

The reservoir (3) having a reservoir volume (27) that contains thepersonal care composition is fluidly connected to the mixing chamber (5)such that the personal care composition is transported from thereservoir (3) when the manually-actuable, non-aerosol dispenser (25) isdispensed (e.g., “stroke”). The fluid connection is a dip tube (7). Thedip tube (7) diameter for the present personal care composition having arelatively higher viscosity requires a relatively larger diameter inorder to allow for easy dispensing (low amount of force needed todispense) and to achieve the desired foam specific volume.

The dip tube (7) diameter is preferably selected to have a diameter ofgreater than 2.0 mm, preferably from about 2.0 mm to about 5.0 mm, morepreferably from about 2.5 mm to about 4.0 mm. The viscosity of theliquid with a dip tube (7) diameter between about 2.0 mm and about 4.0mm allows for the liquid to be conveyed from the reservoir (3) into themixing chamber (5) with lower amounts of force by the user duringdispensing (e.g., “stroke”) while achieving the desired foam densitydiscussed herein.

The mixing chamber (5) comprises at least one air ingress orifice (9),at least one liquid ingress orifice (11) and at least one mixing chamberegress orifice (13). The mixing chamber (5) further comprises aninternal volume and an exterior wall, which defines the internal volumeof the mixing chamber (5). The mixing chamber (5) allows for thecombination of the personal care composition and air to begin theformation of the foamed personal care composition. Modification of thevarious orifice (9, 11, 13) areas (the two-dimensions of the indicatingorifices that comprise part of the mixing chamber (5) exterior wall) canaffect the foam specific density, particularly the correlation of theair ingress orifice (9) and the liquid ingress orifice (11) such thatthe liquid to air ratio is appropriate.

The air ingress orifice (9) is suitable to convey air that has enteredinto the headspace of the reservoir (3). The mixing chamber (5) maycomprise more than one air ingress orifice (9). In one embodiment, themixing chamber (5) comprises one air ingress orifice (9). The area ofthe air ingress orifice (9) may be from about 0.62 mm² (about a 0.2 mmdiameter circular air ingress orifice) to about 3.14 mm² (about a 1 mmdiameter circular air ingress orifice), preferably from about 1.26 mm²(about a 0.4 mm diameter circular air ingress orifice) to about 1.88 mm²(about a 0.8 mm diameter circular air ingress orifice). If more than oneair ingress orifice (9) is selected, the total area of all air ingressorifices (9) should be used. Communication of the air in to the mixingchamber (5) via the air ingress orifice (9) can be and indirectcommunication with the mixing chamber (5) or a direct communication withthe mixing chamber (5).

Similarly, the liquid ingress orifice (11) is suitable to fluidly conveythe personal care composition into the mixing chamber (5) from thereservoir (3), preferably via a dip tube (7). In one embodiment, themixing chamber (5) comprises more than one liquid ingress orifice (11).In one embodiment, the mixing chamber (5) comprises three liquid ingressorifices (11). The area of the liquid ingress orifice (11) should befrom about 1.5 mm² to about 3 mm². In one embodiment the liquid ingressorifice (11) should be from about 1.8 mm² to about 2.3 mm². If more thanone liquid ingress orifice (9) is selected, the total area of all airingress orifices (9) should be used. For example, a total area of 2.0mm² for three liquid ingress orifices (11) would equate the total areasof all three liquid ingress orifices (11) combined. The fluid conveyancefrom the reservoir (3) to the mixing chamber (5) may be an indirectcommunication pathway with the mixing chamber (5) or a directcommunication pathway with the mixing chamber (5).

As used herein “indirect communication” means that the conveyance of theair or personal care composition to the mixing chamber (5) travels alonga pathway through some other physical structure before entering into themixing chamber (5). For example, the air or personal care compositionwill come into contact with the exterior wall of the mixing chamber (5)before entering into the mixing chamber (5) through the respectiveorifice (9, 11). In one embodiment, a void volume (30) is contiguouswith the exterior wall of the mixing chamber (5). The air or thepersonal care composition is conveyed from the reservoir, through thedip tube (7) into the void volume (30) external to the mixing chamber(5). The void volume (30) is in air and/or in liquid communication withthe air ingress orifice (9) and/or the liquid ingress orifice (11),respectively.

As used herein “direct communication” means that the conveyance of theair or personal care composition to the mixing chamber (5) travelsdirectly into the mixing chamber (5). For example, the air or personalcare composition will come into contact with the internal volume of themixing chamber (5) through the respective orifice (9, 11) withoutcontacting a component exterior to the mixing chamber (5).

In one embodiment, the mixing chamber egress orifice (13) is selected tocreate an increase in pressure within the mixing chamber (5). The mixingchamber (5) may comprise more than one mixing chamber orifice (13). Inone embodiment, the mixing chamber (5) comprises one mixing chamberegress orifice (13).

The mixing chamber (5) has an outer wall creating an internal volume ofthe mixing chamber (5). The top edge of the outer wall defines acircumference. The mixing chamber egress orifice (13) may be the samesize area of the circumference of the mixing chamber (5) top edge, butpreferably is selected to be smaller area than the area of thecircumference of the mixing chamber (5) top edge so as to create anincrease in pressure in the mixing chamber (5). The area of the mixingchamber egress orifice (13) may be between about 0.314 mm² (0.1 mmdiameter circular orifice) to about 9.42 mm² (3 mm diameter circularorifice). In one embodiment, the mixing chamber egress orifice (13)comprises an area of about 2.512 mm² (0.8 mm diameter circular orifice)to about 5.652 mm² (1.8 mm diameter circular orifice). If more than onemixing chamber egress orifice (13) is present, the total area of all ofthe mixing chamber egress orifices should be considered.

In an embodiment, a diffuser plate (29) comprises the mixing chamberegress orifice (13). The diffuser plate (29) may be part of the mixingchamber (5) structure or it may be a separate component that fits intothe mixing chamber (5). It is believed that the diffuser plate (29)helps increase the residence time in the mixing chamber (5) and subjectsthe personal care composition to more time in the shear generated in themixing chamber (5).

The mixing chamber (5) is fluidly connected to the foamer assembly (1).The personal care composition enters into the mixing chamber (5) via theliquid ingress orifice (11) and mixes with air which enters the mixingchamber (5) via the air ingress orifice (9).

The air is ordinarily supplied from the environment exterior to themanually-actuable, non-aerosol dispenser (25), the air entering themanually-actuable, non-aerosol dispenser (25) after a stroke which isthen located in the headspace of the reservoir (3). The controlled entryor exit of air into the manually-actuable, non-aerosol dispenser (25)reservoir (3) headspace may be accomplished by a ball valve (23) orsilicone seal or gasket. The ball valve or silicone seal or gasket maybe located in the foamer assembly (1) an in communication with theheadspace. In one embodiment, the ball valve (23, silicone seal orgasket is located to communicate between the reservoir (3) and the airexternal to the manually-actuable, non-aerosol dispenser (25) such thatwhen the manually-actuable, non-aerosol dispenser (25) is beingdispensed, the ball valve (23) silicone seal or gasket excludes entry ofair external to the manually-actuable, non-aerosol dispenser (25) intothe reservoir (3) headspace so that the air in the headspace is conveyedto the mixing chamber through the air ingress orifice (9). Afterdispensing (“stroke”), the ball valve (23), silicone seal or gasketallows entry of air external to manually-actuable, non-aerosol dispenser(25) to enter into the reservoir (3) to refill the headspace for thenext stroke.

After the personal care composition and air enter into the mixingchamber (5) and form the foamed personal care composition, the foamedpersonal care composition exits the mixing chamber (5) via the mixingchamber egress orifice (13), traveling through a foam fluid connection(17) to the foamer assembly (1) and exits the foamer dispensing orifice(19). The foam fluid connection (17) between the mixing chamber egressorifice (13) and the foamer dispensing orifice (19) may have presenttherein one or more screens or meshes (21 a, 21 b, 21 c) which may beused to modify the foam specific volume. The number of meshes, the sizeof the openings in the meshes and the frequency of the openings in themeshes may be used to modify the foam specific volume. In oneembodiment, at least 2 meshes (21 a, 21 b) are utilized, wherein the 2meshes (21 a, 21 b) are contiguous with each other. The meshes comprisea diameter section and a depth. The diameter section (largest surfacearea of the mesh) is the portion of the mesh which would be contiguouswith another mesh.

At least a lower portion of the dip tube (7) may be angled toward alowermost front corner of the reservoir (3) when the reservoir (3) istilted at an angle for optimal squeezing and dispensing of foam, so asto maximize efficient use of the personal care composition in thereservoir (3). The angle of incline of the lowermost portion of the diptube (7) preferably mimics the angle of incline of the foamer dispensingorifice (19), and both are preferably at an angle downward from ahorizontal axis through the mesh closest to the dispensing head orifice(19) in a range of about 30° to about 45°.

In one embodiment, one to three meshes are present in the fluidconnection between the mixing chamber egress and the dispensing headorifice. In one embodiment, two meshes (21 a, 21 b) are located in thefoam fluid connection (17) in close proximity to the mixing chamberegress orifice (13), wherein the two meshes (21 a, 21 b) comprise about170 micron (μ) opening size and wherein one mesh (21 c) is located inclose proximity to the foamer dispensing orifice (19), wherein the onemesh (21 c) comprises about a 70 micron (μ) opening size.

In one embodiment two meshes (21 a, 21 b) located in the foam fluidconnection (17) in close proximity to the mixing chamber egress orifice(13) and the two meshes (21 a, 21 b) are contiguous with each other,wherein the two meshes (21 a, 21 b) comprise about 170 micron (μ)opening size and wherein one mesh (21 c) is located in close proximityto the foamer dispensing orifice (19), wherein the one mesh (21 c)comprises about a 70 micron (μ) opening size. Each mesh is preferablyprovided as an injection molded wafer or disc having a cylindricalsidewall and a screen extending across one end of the cylindricalsidewall. The screen does not extend axially (from the top edge of thecylindrical sidewall to the bottom edge of the cylindrical sidewallmoving along the y-axis) the entire length of the cylindrical sidewall.As used in this paragraph, “contiguous” means that the two cylindricalsidewalls of the respective wafers or discs are immediately adjacent oneanother. However, each of the respective wafers is preferably orientedwith its screen is facing up, such that even with the two wafers ordiscs in contact with one another, there is a gap separating the screenof the first disc from the screen of the second disc.

Turning now to FIG. 3, a particularly preferred embodiment isillustrated in which only two meshes (21 a, 21 c) are utilized, one (21a) in close proximity to the mixing chamber egress orifice (13) and theother (21 c) disposed close proximity to the foamer dispensing orifice(19).

By varying the size of the mixing chamber egress orifice (13), thenumber of meshes (21 a, 21 b, 21 c), and the opening size of the screensof the meshes, it is possible to reduce the amount of work required toexpel a desired quantity of foam, while substantially preserving thedesired foam specific volume. For instance, in an exemplaryimplementation of the embodiment illustrated in FIG. 1, a mixing chamberegress orifice (13) of 1 mm diameter is provided in a diffuser plate(29) [area of orifice is pi*diameter]. In that embodiment, three meshwafers or discs are provided in the foam fluid connection (17), witheach of the first two (21 a, 21 b) comprising a mesh opening size ofabout 170 micron (μ), and the third comprising a mesh opening size ofabout 70 micron (μ).

In an exemplary implementation of the embodiment illustrated in FIG. 3,the second mesh (21 b) is omitted, the mixing chamber egress orifice isincreased to 1.75 mm in a diffuser plate (29) [area of orifice ispi*diameter], the first mesh (21 a) has a mesh opening size of about 170micron (μ), and the mesh wafer or disc (21 c) comprises a mesh openingsize of about 70 micron (μ) in located in the foam fluid connection(17).

Kits

The hair colorant composition products may be sold as a kit containing atint composition component and a developer composition component thatare packaged with gloves and instructions. Optionally a conditioningcomposition component and/or a color referresher composition may alsoincluded. A user will combine the tint composition component anddeveloper composition component and then apply the mixed composition inthe form of foam to hair.

The tint composition component of the present application may contain atleast one hair dye that is selected from oxidative dye precursors,couplers and direct dyes. Additional materials included in the tintcomposition component include an alkalizing agent, perfume with anAverage ClogP of less than 1.5, solvent, radical scavengers and foamstabilizing agents. The tint composition is substantially free ofsurfactant.

The developer composition component of the present application maycontain a solvent, an oxidizing agent and foam stabilizing agents. Thedeveloper composition component is substantially free of surfactant.

Generally, the weight ratio of tint formulation:developer formulation isin the range 5:1 to 1:5, such as 1:1, 1:1.5, 1:2, 1:3 and 1.4 dependingon strength of developer composition and tint composition.

Included in the kit of the present application is manually-actuable,non-aerosol dispenser. The dispenser is capable of dispending themixture of the tint composition component and developer compositioncomponent in a foam comprising a specific foam volume from about 6 ml/gto about 14 mL/g, preferably from about 7.5 ml/g to about 12 ml/g, morepreferably from about 8 ml/g to about 10.5 ml/g.

The kit may contain two or more containers. In one embodiment, the tintcomposition component is contained in one container and the developercomposition component is contained in the manually-actuable, non-aerosoldispenser or reservoir of the manually-actuable, non-aerosol dispenser.

Optional components for the kit include a conditioner composition and arefreshing color composition. The conditioner composition may comprise aconditioning agent. The refreshing color composition may comprise aconditioning agent and direct dyes.

Method of Use

A user mixes a tint composition and a developer composition together inthe reservoir of the manually-actuable, non-aerosol dispenserimmediately before use. The user may then shake to mix the tintcomposition and developer composition. Shaking may be in a verticallyreciprocating motion or in a rotating reciprocating shaking motion for aminimum of 10 seconds to mix the tint composition and developercomposition. The user then actuates the manually-actuable, non-aerosoldispenser to dispense foam (foamed hair colorant composition) eitherinto the user's gloved hand or directly onto the hair. The foam maybegin to collapses between about 10 seconds to 30 minutes after beingdispensed. The exemplified compositions given in the tables 7 and 8hereinafter illustrate suitable compositions.

After allowing the collapsed foam (now a liquid composition) to remainon the hair for 5 to 30 minutes (to ensure uniform application to all ofthe hair), the user then rinses his/her hair thoroughly with water andallows it to dry.

When present, the optional conditioning agent can be provided in anothercontainer. In one embodiment, the content of the conditioner containercan be applied (after an optional rinse step) as a post-treatmentimmediately after the hair colorant composition.

According to the present invention, the methods of coloring hair alsocomprise embodiments whereby the foamed hair colorant composition of thepresent invention is applied to the hair and preferably the mixture isworked into the hair by a user's fingers or a comb or similar implementfor a few minutes (to ensure uniform application to all of the hair).The composition is then allowed to remain on the hair in order for thecolor to develop for a time period of less than about 20 minutes,preferably less than about 15 minutes, more preferably from about 5minutes to about 10 minutes, most preferably for about 10 minutes. Theuser then rinses his/her hair thoroughly with tap water and allows it todry and or styles the hair as usual.

According to a further alternative embodiment of the present invention,the method of coloring the hair is a sequential hair coloring methodcomprising the steps of at least two sequential hair color treatmentswherein the time period between each treatment is from 1 to 60 days,preferably from 1 to 40 days, more preferably from 1 to 28 days, evenmore preferably from 1 to 14 days and most preferably from 1 to 7 days.In such embodiments, the time that the composition is retained on headmay be less than about 20 minutes and is preferably less than about 10minutes and most preferably from about 2 minutes to about 5 minutes.

Test Methods Viscosity Sample Preparation

The tint composition and developer composition are combined to make anhair colorant composition. The sample preparation of the hair colorantcomposition should be as follows:

-   -   1. combine, in a 1:1 weight ratio the tint composition and the        developer composition in a container from which it can be        dispensed. The container should be closed or capped.    -   2. the closed container is then shaken for 15 seconds.    -   3. The contents of the closed container poured into a 100 tall        container available from FlackTek Inc. is then placed onto a DAC        800 FVZ SpeedMixer from FlackTek Inc. set to 1950 rpm for 10        seconds to draw any bubbles in the out of the sample.    -   4. Any bubbles or foam on the top of the liquid is decanted.    -   5. The sample is then measured for viscosity.

Low Shear Viscosity and High Shear Viscosity

The low-shear viscosity and the high shear viscosity, as defined above,is measured via a TA Instruments AR2000 Rheometer having the followinggeometry:

-   -   40 mm 2° stainless steel cone    -   40 mm stainless steel plate    -   Standard Size DIN or Conical Concentric Cylinders        Using the data analysis program of the TA Instruments AR2000        Rheometer, collected data is then graphed and a point at the        beginning of the run is recorded as the low-shear viscosity.        Data should be run at least twice to ensure correlation of the        recorded data.

The low shear viscosity is measured at 0.01 s⁻¹ and the high shearviscosity is measured at 500 s⁻¹.

Foam Specific Volume

Foam specific volume is measured by placing a 100 ml beaker onto a massbalance, tarring the mass of the beaker and then dispensing from afoaming dispenser into the 100 ml beaker until the volume of the foam isequal to 100 ml. Record the resulting mass of the 100 ml of foam at 5seconds from the end of dispensing. Dividing the volume (100) by themass of the foam results in the foam specific volume having the units ofmL/g.

Perfume Examples

TABLE 4 Comparative perfume composition with Average ClogP greater than1.5 LogP Average Chemical Name Amount (v3.0) Clog P Ethyl Acetate 5.0000.39 0.020 cis-3-Hexen-1-ol 1.000 1.3 0.013 Phenethyl alcohol 5.000 1.440.072 Heliotropin 0.100 1.12 0.001 Ethyl vanillin 0.100 1.51 0.002Benzyl acetate 4.000 1.68 0.067 Ethyl 2-methylbutyrate 1.000 2.00 0.020Geraniol 10.000 1.95 0.195 Linalool 5.000 2.44 0.122Hexahydro-4,7-methanoinden-5(6)-yl 1.000 2.95 0.030 propionate Methyl2-(2-pentyl-3-oxocyclopentyl- 5.000 3.01 0.151 1)acetate Allyl Caproate1.800 3.03 0.055 Dihydro Myrcenol 5.000 3.08 0.154 Gamma Decalactone1.000 3.23 0.032 Undecalactone 1.000 3.75 0.038 2-tert.Butylcyclohexylacetate 20.000 3.87 0.774 p-tert.Butyl-alpha- 5.000 3.88 0.194methyldihydrocinnamic aldehyde Ionone Gamma Methyl 10.000 4.01 0.401Dimethyl Benzyl Carbinyl Butyrate 1.000 4.09 0.041Pentadec-11(12)-enolide 5.000 4.32 0.216 Hexyl Salicylate 5.000 4.580.229 3-Acetyl-3,4,10,10- 8.000 4.93 0.394tetramethylbicyclo[4.4.0]decane Total 100.000 ClogP 3.219The perfume composition of Table 4 used in a hair colorant compositionsuch as those in Table 8 will not result in a foam when passed through afoamer such as that shown in FIG. 1.Examples of suitable perfume include:

TABLE 5 Example 1 Amt average Chemical name wt %* ClogP Clog P ethylmaltol 10 0.29 0.029 Ethyl 2-methyl-1,3-dioxolane-2-acetate 38 0.920.3496 Heliotropin 10 1.12 0.112 cis-3-Hexen-1-ol 10 1.3 0.13 Phenethylalcohol 20 1.44 0.28 Ethyl vanillin 5 1.51 0.0755 Ethyl 2-methylbutyrate5 2 0.1 2-Butanone,_4-phenyl- 2 2.14 0.0428 Total 100 *by weight of theperfume compositionWhich gives an Average ClogP of 1.127.

TABLE 6 Example 2 Amt average Chemical name wt %* ClogP Clog P Ethyl2-methyl-1,3-dioxolane-2-acetate 27.0 0.92 0.248 Heliotropin 5.0 1.120.056 cis-3-Hexen-1-ol 5.0 1.3 0.065 Oxalone 5.0 1.31 0.065p-Anisaldehyde 2.0 1.37 0.0274 Phenethyl alcohol 26.0 1.44 0.3744ACETOPHENONE 7.0 1.57 0.1099 Benzyl acetate 2.0 1.68 0.0366 Florol 19.01.95 0.3705 Ethyl 2-methylbutyrate 1.0 2 0.024,4a,5,9b-tetrahydroindeno[1,2-d]-1,3- 1.0 2.04 0.0204 dioxin Total100.0 *by weight of the perfume compositionWhich gives an Average ClogP of 1.391.

TABLE 7 Example 3 Amt average Chemical name wt %* ClogP Clog P EthylMaltol 12 0.29 0.0348 Ethyl acetate 10 0.39 0.039 Ethyl2-methyl-1,3-dioxolane-2-acetate 30 0.92 0.276 Heliotropin 10 1.12 0.112cis-3-Hexen-1-ol 5 1.30 0.065 Phenethyl alcohol 20 1.44 0.288 Ethylvanillin 5 1.51 0.0755 Benzyl acetate 2 1.68 0.0336 Ethyl2-methylbutyrate 1 2.00 0.02 Amyl-acetate (isomer blend) 5 1.94 0.09675Amyl-acetate (isomer blend) n-Pentyl acetate 1.50 2.11 0.633 2-methylbutyl acetate <0.1 0 Iso amyl acetate 3.5 1.86 1.302 average 1.94 ClogPof isomer blend *by weight of the perfume compositionWherein the amyl-acetate isomer blend is calculated to fine the averageClogP of the isomer blend which is used to find the Average ClogP of1.04.

Formulation Examples

TABLE 8 Tint Compositions Tint Medium Light Gold Blonde Brown Black RedIngredient % by wt % by wt % by wt % by wt propylene glycol 14 14 14 14ethoxydiglycol 7 7 7 7 Perfume* 0.75 0.75 0.75 0.75 disuccinate 3.353.35 3.35 3.35 citric acid (local # 01057820) 0.4 0.4 0.4 isopropylalcohol 5 5 5 5 ammonium hydroxide (30%) 8.25 7.5 5 5 sodium sulfite 0.10.1 0.1 0.1 EDTA (local # 01057577) 0.05 0.05 0.05 0.05 Sodium Chloride1.954 1.38 0.32 0.85 erythorbic acid 0.4 0.4 0.4 0.4 m-aminophenol (dye)0.013 0.0093 0.6 — 1-naphthol (dye) 0.026 0.0642 — — toluene-2,5-diaminesulphate 0.21 1.536 3.84 0.35 (dye) n,n-bis(2-hydroxyethyl)-p- — 0.0212— — phenylenediamine sulphate (dye) resorcinol (dye) 0.044 0.082 1.1 —p-aminophenol (dye) 0.015 0.223 — — 2-methylresorcinol (dye) 0.197 0.385— — 4-amino-2-hydroxytoluene (dye) — 0.0093 — 1.76 1-hydroxyethyl4,5-diamino — — 0.08 2.5 pyrazole sulphate (dye) phenyl methylpryazolone (dye) 0.05 0.1 0.1 0.1 2,4-Diaminophenoxyethanol HCI — — 0.7— 5-EthylOAP — 0.0132 — — water to 100% to 100% to 100% to 100% *Perfumemay be any one of Ex. 1-3

TABLE 9 Developer Composition % by % by % by % by % by weight of weightof weight of weight of weight of developer developer developer developerdeveloper com- com- com- com- com- Ingredient position position positionposition position EDTA 0.04 0.04 0.04 0.04 0.04 disodium dihydrateEtidronic 0.08 0.08 0.08 0.08 0.08 acid Hydrogen 18.45 18.45 18.45 18.4518.45 peroxide (50% active) ACULYN ® 10.5 8.0 7.0 5.5 2.0 33 ACULYN ®2.92 5.5 6.5 8.0 10.0 22 water to 100% to 100% to 100% to 100% to 100%

Each tint formulation may be admixed with the developer formulation toprovide a hair colorant composition. The weight ratio of tintformulation to developer formulation may be varied depending upon theprecise shade required and the degree of bleaching necessary to attainthe desired shade. Generally, the weight ratio of tintformulation:developer formulation is in the range 5:1 to 1:5, such as1:1, 1:2 and 1:3 depending on strength of developer composition and tintcomposition.

A tint compositions of Table 8 and the developer compositions of Table 9ware mixed in a 1:1 weight ratio to form an hair colorant composition ofthe invention. The hair colorant composition is introduced into thecontainer of a squeeze foamer such as that shown in FIG. 1. The deviceis squeezed and the hair colorant composition is dispensed as foam ofacceptable quality.

The dimensions and values disclosed herein are not to be understood asbeing strictly limited to the exact numerical values recited. Instead,unless otherwise specified, each such dimension is intended to mean boththe recited value and a functionally equivalent range surrounding thatvalue. For example, a dimension disclosed as “40 mm” is intended to mean“about 40 mm.”

Every document cited herein, including any cross referenced or relatedpatent or application is hereby incorporated herein by reference in itsentirety unless expressly excluded or otherwise limited. The citation ofany document is not an admission that it is prior art with respect toany invention disclosed or claimed herein or that it alone, or in anycombination with any other reference or references, teaches, suggests ordiscloses any such invention. Further, to the extent that any meaning ordefinition of a term in this document conflicts with any meaning ordefinition of the same term in a document incorporated by reference, themeaning or definition assigned to that term in this document shallgovern.

While particular embodiments of the present invention have beenillustrated and described, it would be obvious to those skilled in theart that various other changes and modifications can be made withoutdeparting from the spirit and scope of the invention. It is thereforeintended to cover in the appended claims all such changes andmodifications that are within the scope of this invention.

1. A hair colorant product comprising an hair colorant compositioncontained in a manually-actuable, non-aerosol dispenser, the compositioncomprising a hair dye, an alkalizing agent, an oxidizing agent, a foamstabilizing agent which is a member selected from the group consistingof polymeric emulsifiers and polymeric foam stabilizers and mixturesthereof and a perfume, the perfume comprising an Average ClogP less than1.5, wherein the hair colorant composition is substantially free ofsurfactant and when dispensed from the manually-actuable, non-aerosoldispenser result is a foam comprising a specific foam volume from about6 ml/g to about 14 ml/g.
 2. The hair colorant product of claim 1 whereinthe perfume comprises a plurality of perfume raw materials havingindividual ClogP values in the range of 1.5 to 2.5.
 3. The hair colorantproduct of claim 1 wherein the perfume comprises ethyl 2-methyl-1,3dioxolane-2-acetate, phenethyl alcohol, heliotropin, cis-3-hexen-1-ol,ethyl 2-methylbutyrate and mixtures thereof.
 4. The hair colorantproduct of claim 3 wherein the perfume further comprises ethyl vanillin,ethyl maltol, benzyl acetate and mixtures thereof.
 5. The hair colorantproduct of claim 1 wherein the perfume comprises less than 500 ppm ofcontaminates.
 6. The hair colorant product of claim 1 wherein the foamstabilizing agent is selected from hydroxypropyl methylcellulose,methylcellulose, cecetyl hydroxyethylcellulose and mixtures thereof. 7.The hair colorant product of claim 1 wherein the foam stabilizing agentis a hydrophobically-modified alkali soluble emulsion polymer having anacid/acrylate copolymer backbone and a monomer that connects thehydrophobic groups as side chains or an anionic alkali-soluble polymeremulsion synthesized from acid and acrylate comonomers or a mixturethereof.
 8. The hair colorant product of claim 1 wherein the foamstabilizing agent is selected as an acrylate/C₁₀₋₃₀ alkyl acrylatecrosspolymer.
 9. The hair colorant product of claim 1 wherein the foamstabilizing agent is selected as a polymer comprising vinyl pyrrolidone(VP), dimethylaminopropyl methacrylamide (DMAPA) andmethacryoylaminopropyl lauryldimonium chloride (MAPLAC).
 10. The haircolorant product of claim 1 wherein the foam stabilizing agent ispresent in an amount in the range from about 4 to about 25% by weight,preferably about 5 to about 15% by weight, more preferably about 5 toabout 10% by weight of the composition.
 11. The hair colorant product ofclaim 1 wherein the hair colorant composition comprises less than 200ppm based on the hair colorant composition of surfactant.
 12. The haircolorant product of claim 1 wherein the hair colorant compositioncomprises a pH between 9 and
 11. 13. The hair colorant product of claim1 wherein said oxidizing agent is a member selected from the groupconsisting of hydrogen peroxide, percarbonates, perphosphates andmixtures thereof.
 14. The hair colorant product of claim 1 wherein thealkalizing agent is selected from ammonium chloride, ammonium sulphate,ammonium nitrate, ammonium phosphate, ammonium acetate, ammoniumcarbonate, ammonium hydrogen carbonate, ammonium carbamate, ammoniumhydroxide, percarbonate salts, ammonia and mixtures thereof.
 15. A haircolorant composition comprising: (i) a hair dye, (ii) an alkalizingagent, (iii) an oxidizing agent, (iv) a foam stabilizing agent which isa member selected from the group consisting of polymeric emulsifiers andpolymeric foam stabilizers and mixtures thereof; and (v) a perfumecomprising a blend of perfume raw materials in which up to 30% by weightof the perfume consists essentially of perfume raw materials having aClogP in the range 1.5 to 2.5 and the balance of the perfume consistsessentially of perfume raw materials having a ClogP of less than 1.5,wherein the hair colorant composition is substantially free ofsurfactant.
 16. The hair colorant composition of claim 15 wherein theperfume comprises an Average ClogP less than 1.5.
 17. The hair colorantcomposition of claim 15 wherein the perfume comprises ethyl 2-methyl-1,3dioxolane-2-acetate, phenethyl alcohol, heliotropin, cis-3-hexen-1-ol,ethyl 2-methylbutyrate and mixtures thereof.
 18. The hair colorantcomposition of claim 17 wherein the perfume further comprises ethylvanillin, ethyl maltol, benzyl acetate and mixtures thereof.
 19. Thehair colorant composition of claim 15 wherein the perfume comprises lessthan 500 ppm of contaminates.
 20. A kit comprising containing componentsto form an hair colorant composition the kit comprising: A tintcomposition component comprising a hair dye, an alkalizing agent and aperfume; wherein the perfume comprises an Average ClogP less than 1.5; Adeveloper composition component comprising an oxidizing agent and a foamstabilizing agent which is a member selected from the group consistingof polymeric emulsifiers and polymeric foam stabilizers and mixturesthereof; A manually-actuable, non-aerosol dispenser, the dispensercapable of dispending the mixture of the tint composition component anddeveloper composition component in a foam comprising a specific foamvolume from about 6 to about 14 ml/g, preferably from about 7.5 ml/g toabout 12 ml/g, more preferably from about 8 to about 10.5 ml/g; Whereinthe tint composition component and the developer composition componentare essentially free of surfactant.
 21. The kit of claim 20 wherein thetint composition comprises a perfume wherein the perfume comprises aplurality of perfume raw materials having individual ClogP values in therange of 1.5 to 2.5.
 22. The kit of claim 20 wherein the tintcomposition comprises a perfume wherein the perfume comprises ethyl2-methyl-1,3 dioxolane-2-acetate, phenethyl alcohol, heliotropin,cis-3-hexen-1-ol, ethyl 2-methylbutyrate and mixtures thereof.
 23. Thekit of claim 22 wherein the perfume further comprises ethyl vanillin,ethyl maltol, benzyl acetate and mixtures thereof.
 24. The kit of claim22 wherein the perfume comprises less than 500 ppm of contaminates. 25.The kit of claim 22 wherein said foam stabilizing agent is selected asan acrylate/C₁₀₋₃₀ alkyl acrylate crosspolymer.
 26. The kit of claim 22wherein said foam stabilizing agent is present in an amount in the rangefrom about 4 to about 25% by weight, preferably about 5 to about 15% byweight, more preferably about 5 to about 10% by weight of thecomposition.
 27. The kit of claim 22 wherein the tint compositioncomprises less than 200 ppm based on the tint composition of surfactant.28. The kit of claim 22 wherein the developer composition comprises lessthan 200 ppm based on the developer composition of surfactant.
 29. Thekit of claim 22 wherein the developer composition comprises an oxidizingagent selected from the group consisting of hydrogen peroxide,percarbonates, perphosphates and mixtures thereof.
 30. The kit of claim22 wherein the tint composition comprises an alkalizing agent selectedfrom ammonium chloride, ammonium sulphate, ammonium nitrate, ammoniumphosphate, ammonium acetate, ammonium carbonate, ammonium hydrogencarbonate, ammonium carbamate, ammonium hydroxide, percarbonate salts,ammonia and mixtures thereof.
 31. The kit of claim 22 wherein themanually-actuable, non-aerosol dispenser is equipped with a reservoircomprising a reservoir volume, a mixing chamber and a dispensing head,wherein the reservoir is capable of containing the hair colorant productwherein when the manually-actuable, non-aerosol dispenser is actuatedthe hair colorant product is mixed with air and is dispensed as a foam.32. The kit of claim 31 wherein the mixing chamber comprises at leastone liquid ingress orifice, a foam egress orifice and an air ingressorifice.
 33. The kit of claim 32 wherein air is introduced into themixing chamber by the air ingress orifice such that the ratio of air tothe hair colorant composition is from about 1:6 to about 1:15.
 34. Thekit of claim 31 wherein the dispenser further comprises a dip tube inthe reservoir and connected to the ingress orifice of the mixingchamber, wherein the dip tube has a diameter of greater than 2.0 mm.